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53255155400 = 23521715663281
BaseRepresentation
bin110001100110010000…
…010010111011001000
312002110102222012100222
4301212100102323020
51333031304433100
640244242445212
73563466231506
oct614620227310
9162412865328
1053255155400
1120649168527
12a3a3063808
135039280395
142812b95676
1515ba53a485
hexc66412ec8

53255155400 has 48 divisors (see below), whose sum is σ = 131101670340. Its totient is φ = 20048998400.

The previous prime is 53255155391. The next prime is 53255155403. The reversal of 53255155400 is 455155235.

It can be written as a sum of positive squares in 6 ways, for example, as 12016105924 + 41239049476 = 109618^2 + 203074^2 .

It is a super-2 number, since 2×532551554002 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53255155403) 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, 7828241 + ... + 7835040.

Almost surely, 253255155400 is an apocalyptic number.

53255155400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53255155400 is an abundant number, since it is smaller than the sum of its proper divisors (77846514940).

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

53255155400 is a wasteful number, since it uses less digits than its factorization.

53255155400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15663314 (or 15663305 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 53255155400 in words is "fifty-three billion, two hundred fifty-five million, one hundred fifty-five thousand, four hundred".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 136 170 200 340 425 680 850 1700 3400 15663281 31326562 62653124 78316405 125306248 156632810 266275777 313265620 391582025 532551554 626531240 783164050 1065103108 1331378885 1566328100 2130206216 2662757770 3132656200 5325515540 6656894425 10651031080 13313788850 26627577700 53255155400