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8153137194 = 235923031461
BaseRepresentation
bin1111001011111011…
…10000000000101010
3210001012120021122020
413211331300000222
5113144200342234
63425010005310
7406020344166
oct74575600052
923035507566
108153137194
113504262714
1216b6576836
139cc19cc47
14574b6bca6
1532ab99549
hex1e5f7002a

8153137194 has 16 divisors (see below), whose sum is σ = 16582652640. Its totient is φ = 2671649360.

The previous prime is 8153137127. The next prime is 8153137211. The reversal of 8153137194 is 4917313518.

It is a super-2 number, since 2×81531371942 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11515377 + ... + 11516084.

It is an arithmetic number, because the mean of its divisors is an integer number (1036415790).

Almost surely, 28153137194 is an apocalyptic number.

8153137194 is an abundant number, since it is smaller than the sum of its proper divisors (8429515446).

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

8153137194 is a wasteful number, since it uses less digits than its factorization.

8153137194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23031525.

The product of its digits is 90720, while the sum is 42.

The square root of 8153137194 is about 90294.7240651413. The cubic root of 8153137194 is about 2012.6808607901.

The spelling of 8153137194 in words is "eight billion, one hundred fifty-three million, one hundred thirty-seven thousand, one hundred ninety-four".

Divisors: 1 2 3 6 59 118 177 354 23031461 46062922 69094383 138188766 1358856199 2717712398 4076568597 8153137194