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53144664100 = 225211233713033
BaseRepresentation
bin110001011111101010…
…110011100000100100
312002011202001122210121
4301133222303200210
51332320013222400
640225254331324
73560655122443
oct613752634044
9162152048717
1053144664100
11205a1860800
12a372059b44
13501c405508
142802232d5a
1515b09b221a
hexc5fab3824

53144664100 has 108 divisors (see below), whose sum is σ = 127146904612. Its totient is φ = 19266508800.

The previous prime is 53144664059. The next prime is 53144664109. The reversal of 53144664100 is 146644135.

53144664100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2075895844 + 51068768256 = 45562^2 + 225984^2 .

It is a super-3 number, since 3×531446641003 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144664109) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4071184 + ... + 4084216.

Almost surely, 253144664100 is an apocalyptic number.

53144664100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53144664100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63573452306).

53144664100 is an abundant number, since it is smaller than the sum of its proper divisors (74002240512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53144664100 is a wasteful number, since it uses less digits than its factorization.

53144664100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13406 (or 13388 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 53144664100 in words is "fifty-three billion, one hundred forty-four million, six hundred sixty-four thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 337 484 550 605 674 1100 1210 1348 1685 2420 3025 3370 3707 6050 6740 7414 8425 12100 13033 14828 16850 18535 26066 33700 37070 40777 52132 65165 74140 81554 92675 130330 143363 163108 185350 203885 260660 286726 325825 370700 407770 573452 651650 716815 815540 1019425 1303300 1433630 1576993 2038850 2867260 3153986 3584075 4077700 4392121 6307972 7168150 7884965 8784242 14336300 15769930 17568484 21960605 31539860 39424825 43921210 48313331 78849650 87842420 96626662 109803025 157699300 193253324 219606050 241566655 439212100 483133310 531446641 966266620 1062893282 1207833275 2125786564 2415666550 2657233205 4831333100 5314466410 10628932820 13286166025 26572332050 53144664100