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61376800 = 2552174513
BaseRepresentation
bin1110101000100…
…0100100100000
311021111021010211
43222020210200
5111203024200
610031303504
71343460052
oct352104440
9137437124
1061376800
1131711331
121867ab94
13c93c844
1482198d2
1555c5aba
hex3a88920

61376800 has 72 divisors (see below), whose sum is σ = 158685156. Its totient is φ = 23101440.

The previous prime is 61376771. The next prime is 61376801. The reversal of 61376800 is 867316.

It can be written as a sum of positive squares in 6 ways, for example, as 9709456 + 51667344 = 3116^2 + 7188^2 .

It is a super-2 number, since 2×613768002 = 7534223156480000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61376801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11344 + ... + 15856.

Almost surely, 261376800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61376800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79342578).

61376800 is an abundant number, since it is smaller than the sum of its proper divisors (97308356).

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

61376800 is a wasteful number, since it uses less digits than its factorization.

61376800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550 (or 4537 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 61376800 is about 7834.3346877702. The cubic root of 61376800 is about 394.4585863401.

It can be divided in two parts, 6137 and 6800, that multiplied together give a square (41731600 = 64602).

The spelling of 61376800 in words is "sixty-one million, three hundred seventy-six thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 50 68 80 85 100 136 160 170 200 272 340 400 425 544 680 800 850 1360 1700 2720 3400 4513 6800 9026 13600 18052 22565 36104 45130 72208 76721 90260 112825 144416 153442 180520 225650 306884 361040 383605 451300 613768 722080 767210 902600 1227536 1534420 1805200 1918025 2455072 3068840 3610400 3836050 6137680 7672100 12275360 15344200 30688400 61376800