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20121010302 = 2311872825191
BaseRepresentation
bin10010101111010011…
…100100000001111110
31220221021020020011210
4102233103210001332
5312201434312202
613124331025250
71311421523421
oct225723440176
956837206153
1020121010302
118595870938
123a9659b226
131b88796673
14d8c3c59b8
157cb6c0c6c
hex4af4e407e

20121010302 has 16 divisors (see below), whose sum is σ = 40275937152. Its totient is φ = 6701350680.

The previous prime is 20121010277. The next prime is 20121010321. The reversal of 20121010302 is 20301012102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405474 + ... + 1419717.

It is an arithmetic number, because the mean of its divisors is an integer number (2517246072).

Almost surely, 220121010302 is an apocalyptic number.

20121010302 is an abundant number, since it is smaller than the sum of its proper divisors (20154926850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121010302 is a wasteful number, since it uses less digits than its factorization.

20121010302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826383.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20121010302 its reverse (20301012102), we get a palindrome (40422022404).

The spelling of 20121010302 in words is "twenty billion, one hundred twenty-one million, ten thousand, three hundred two".

Divisors: 1 2 3 6 1187 2374 3561 7122 2825191 5650382 8475573 16951146 3353501717 6707003434 10060505151 20121010302