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20152256601 = 36717418867
BaseRepresentation
bin10010110001001010…
…110000100001011001
31221000110000201001010
4102301022300201121
5312232434202401
613131404444133
71312251232461
oct226112604131
957013021033
1020152256601
118601472724
123aa4b49649
131b920b69b9
14d925daba1
157ce2e3ed6
hex4b12b0859

20152256601 has 4 divisors (see below), whose sum is σ = 26869675472. Its totient is φ = 13434837732.

The previous prime is 20152256591. The next prime is 20152256639. The reversal of 20152256601 is 10665225102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20152256601 - 210 = 20152255577 is a prime.

It is a super-2 number, since 2×201522566012 (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 (20152256651) 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, 3358709431 + ... + 3358709436.

It is an arithmetic number, because the mean of its divisors is an integer number (6717418868).

Almost surely, 220152256601 is an apocalyptic number.

It is an amenable number.

20152256601 is a deficient number, since it is larger than the sum of its proper divisors (6717418871).

20152256601 is an equidigital number, since it uses as much as digits as its factorization.

20152256601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717418870.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 20152256601 in words is "twenty billion, one hundred fifty-two million, two hundred fifty-six thousand, six hundred one".

Divisors: 1 3 6717418867 20152256601