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32113313021 = 171889018413
BaseRepresentation
bin11101111010000110…
…100100010011111101
310001220000212022211202
4131322012210103331
51011232002004041
622430323425245
72214540441206
oct357206442375
9101800768752
1032113313021
111268a145419
126282825225
13304a16478a
1417a8d9c5ad
15c7e420a9b
hex77a1a44fd

32113313021 has 4 divisors (see below), whose sum is σ = 34002331452. Its totient is φ = 30224294592.

The previous prime is 32113313003. The next prime is 32113313027. The reversal of 32113313021 is 12031331123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8639702500 + 23473610521 = 92950^2 + 153211^2 .

It is a cyclic number.

It is not a de Polignac number, because 32113313021 - 230 = 31039571197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32113312984 and 32113313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32113313027) 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, 944509190 + ... + 944509223.

It is an arithmetic number, because the mean of its divisors is an integer number (8500582863).

Almost surely, 232113313021 is an apocalyptic number.

It is an amenable number.

32113313021 is a deficient number, since it is larger than the sum of its proper divisors (1889018431).

32113313021 is a wasteful number, since it uses less digits than its factorization.

32113313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889018430.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 32113313021 its reverse (12031331123), we get a palindrome (44144644144).

The spelling of 32113313021 in words is "thirty-two billion, one hundred thirteen million, three hundred thirteen thousand, twenty-one".

Divisors: 1 17 1889018413 32113313021