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75801281713057 = 398188919036513
BaseRepresentation
bin10001001111000011011100…
…011110000101001110100001
3100221101112100122122101222101
4101033003130132011032201
534413412011104304212
6425114343400010401
721652314265415035
oct2117033436051641
9327345318571871
1075801281713057
112217516343436a
128602967a60a01
13333b05144bb14
1414a0b318941c5
158b6b72cd6157
hex44f0dc7853a1

75801281713057 has 4 divisors (see below), whose sum is σ = 75801304731460. Its totient is φ = 75801258694656.

The previous prime is 75801281713051. The next prime is 75801281713103. The reversal of 75801281713057 is 75031718210857.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38406576868416 + 37394704844641 = 6197304^2 + 6115121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75801281713057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75801281712989 and 75801281713007.

It is not an unprimeable number, because it can be changed into a prime (75801281713051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5536368 + ... + 13500145.

It is an arithmetic number, because the mean of its divisors is an integer number (18950326182865).

Almost surely, 275801281713057 is an apocalyptic number.

It is an amenable number.

75801281713057 is a deficient number, since it is larger than the sum of its proper divisors (23018403).

75801281713057 is a wasteful number, since it uses less digits than its factorization.

75801281713057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23018402.

The product of its (nonzero) digits is 3292800, while the sum is 55.

The spelling of 75801281713057 in words is "seventy-five trillion, eight hundred one billion, two hundred eighty-one million, seven hundred thirteen thousand, fifty-seven".

Divisors: 1 3981889 19036513 75801281713057