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38817513035481 = 3711808910074733
BaseRepresentation
bin10001101001101111010000…
…00100110101011011011001
312002102220210020002021121210
420310313220010311123121
520041441231314113411
6214320304100453333
711114321105510115
oct1064675004653331
9162386706067553
1038817513035481
1111406462157824
12442b1166aa249
13188762537065b
14982ac5c5a745
15474aec798ca6
hex234de81356d9

38817513035481 has 16 divisors (see below), whose sum is σ = 52488558161280. Its totient is φ = 25512445338240.

The previous prime is 38817513035479. The next prime is 38817513035489. The reversal of 38817513035481 is 18453031571883.

38817513035481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38817513035481 - 21 = 38817513035479 is a prime.

It is a super-2 number, since 2×388175130354812 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38817513035489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1184410 + ... + 8890323.

It is an arithmetic number, because the mean of its divisors is an integer number (3280534885080).

Almost surely, 238817513035481 is an apocalyptic number.

It is an amenable number.

38817513035481 is a deficient number, since it is larger than the sum of its proper divisors (13671045125799).

38817513035481 is a wasteful number, since it uses less digits than its factorization.

38817513035481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092896.

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 38817513035481 in words is "thirty-eight trillion, eight hundred seventeen billion, five hundred thirteen million, thirty-five thousand, four hundred eighty-one".

Divisors: 1 3 71 213 18089 54267 1284319 3852957 10074733 30224199 715306043 2145918129 182241845237 546725535711 12939171011827 38817513035481