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38293090537 = 132945622349
BaseRepresentation
bin100011101010011100…
…100011000011101001
310122211201012112220111
4203222130203003221
51111411012344122
625331441454321
72523636620242
oct435234430351
9118751175814
1038293090537
11152704a6769
1275083413a1
1337c3557070
141bd3a07cc9
15ee1c1ad77
hex8ea7230e9

38293090537 has 4 divisors (see below), whose sum is σ = 41238712900. Its totient is φ = 35347468176.

The previous prime is 38293090519. The next prime is 38293090553. The reversal of 38293090537 is 73509039283.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73509039283 = 174834204601.

It can be written as a sum of positive squares in 2 ways, for example, as 12864323241 + 25428767296 = 113421^2 + 159464^2 .

It is a cyclic number.

It is not a de Polignac number, because 38293090537 - 223 = 38284701929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38293090237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472811162 + ... + 1472811187.

It is an arithmetic number, because the mean of its divisors is an integer number (10309678225).

Almost surely, 238293090537 is an apocalyptic number.

It is an amenable number.

38293090537 is a deficient number, since it is larger than the sum of its proper divisors (2945622363).

38293090537 is a wasteful number, since it uses less digits than its factorization.

38293090537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945622362.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 38293090537 in words is "thirty-eight billion, two hundred ninety-three million, ninety thousand, five hundred thirty-seven".

Divisors: 1 13 2945622349 38293090537