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20132310552 = 2331637512429
BaseRepresentation
bin10010101111111110…
…101010111000011000
31220222001111100012120
4102233332222320120
5312212332414202
613125413141240
71311616546644
oct225776527030
956861440176
1020132310552
1185a1189992
123a9a32a820
131b8ac21cc3
14d8dac7c24
157cc6a40bc
hex4affaae18

20132310552 has 32 divisors (see below), whose sum is σ = 50361620400. Its totient is φ = 6706657664.

The previous prime is 20132310533. The next prime is 20132310559. The reversal of 20132310552 is 25501323102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132310559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216927 + ... + 295502.

Almost surely, 220132310552 is an apocalyptic number.

It is an amenable number.

20132310552 is an abundant number, since it is smaller than the sum of its proper divisors (30229309848).

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

20132310552 is a wasteful number, since it uses less digits than its factorization.

20132310552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514075 (or 514071 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 20132310552 its reverse (25501323102), we get a palindrome (45633633654).

The spelling of 20132310552 in words is "twenty billion, one hundred thirty-two million, three hundred ten thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 1637 3274 4911 6548 9822 13096 19644 39288 512429 1024858 1537287 2049716 3074574 4099432 6149148 12298296 838846273 1677692546 2516538819 3355385092 5033077638 6710770184 10066155276 20132310552