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10161031451 = 194327145893
BaseRepresentation
bin10010111011010010…
…10000100100011011
3222020010202212202012
421131221100210123
5131302211001301
64400134100135
7506541225254
oct113551204433
928203685665
1010161031451
11434470135a
121b76aaa64b
13c5c17c55c
146c56bdb2b
153e70baebb
hex25da5091b

10161031451 has 16 divisors (see below), whose sum is σ = 10985187840. Its totient is φ = 9367475040.

The previous prime is 10161031423. The next prime is 10161031457. The reversal of 10161031451 is 15413016101.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10161031451 is a prime.

It is a super-2 number, since 2×101610314512 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10161031457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198461 + ... + 244353.

It is an arithmetic number, because the mean of its divisors is an integer number (686574240).

Almost surely, 210161031451 is an apocalyptic number.

10161031451 is a deficient number, since it is larger than the sum of its proper divisors (824156389).

10161031451 is a wasteful number, since it uses less digits than its factorization.

10161031451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46226.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 10161031451 its reverse (15413016101), we get a palindrome (25574047552).

The spelling of 10161031451 in words is "ten billion, one hundred sixty-one million, thirty-one thousand, four hundred fifty-one".

Divisors: 1 19 43 271 817 5149 11653 45893 221407 871967 1973399 12437003 37494581 236303057 534791129 10161031451