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9970811401 = 53188128517
BaseRepresentation
bin10010100100100111…
…01000001000001001
3221201212211200220011
421102103220020021
5130410011431101
64325221031521
7502041332665
oct112223501011
927655750804
109970811401
114257299201
121b232555a1
13c2b93a905
146a83258a5
153d5544751
hex2524e8209

9970811401 has 4 divisors (see below), whose sum is σ = 10158939972. Its totient is φ = 9782682832.

The previous prime is 9970811399. The next prime is 9970811413. The reversal of 9970811401 is 1041180799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1041180799 = 1126192459.

It can be written as a sum of positive squares in 2 ways, for example, as 8618337225 + 1352474176 = 92835^2 + 36776^2 .

It is a cyclic number.

It is not a de Polignac number, because 9970811401 - 21 = 9970811399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9970811471) 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, 94064206 + ... + 94064311.

It is an arithmetic number, because the mean of its divisors is an integer number (2539734993).

Almost surely, 29970811401 is an apocalyptic number.

It is an amenable number.

9970811401 is a deficient number, since it is larger than the sum of its proper divisors (188128571).

9970811401 is a wasteful number, since it uses less digits than its factorization.

9970811401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188128570.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 9970811401 is about 99853.9503525023. The cubic root of 9970811401 is about 2152.3364829069.

The spelling of 9970811401 in words is "nine billion, nine hundred seventy million, eight hundred eleven thousand, four hundred one".

Divisors: 1 53 188128517 9970811401