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10306511213 = 63671618739
BaseRepresentation
bin10011001100101000…
…01110000101101101
3222121021112000110112
421212110032011231
5132101431324323
64422412145405
7513255620435
oct114624160555
928537460415
1010306511213
114409836469
121bb7768265
13c83357b5b
146dab4d2c5
15404c56178
hex26650e16d

10306511213 has 4 divisors (see below), whose sum is σ = 10308136320. Its totient is φ = 10304886108.

The previous prime is 10306511203. The next prime is 10306511227. The reversal of 10306511213 is 31211560301.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31211560301 = 277112677113.

It is a cyclic number.

It is not a de Polignac number, because 10306511213 - 28 = 10306510957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10306511203) 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, 803003 + ... + 815736.

It is an arithmetic number, because the mean of its divisors is an integer number (2577034080).

Almost surely, 210306511213 is an apocalyptic number.

It is an amenable number.

10306511213 is a deficient number, since it is larger than the sum of its proper divisors (1625107).

10306511213 is an equidigital number, since it uses as much as digits as its factorization.

10306511213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625106.

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 10306511213 in words is "ten billion, three hundred six million, five hundred eleven thousand, two hundred thirteen".

Divisors: 1 6367 1618739 10306511213