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23100343400 = 2352115501717
BaseRepresentation
bin10101100000111000…
…110100010001101000
32012121220101000212002
4111200320310101220
5334302141442100
614340120310132
71445306451641
oct254070642150
965556330762
1023100343400
1198845a59a2
124588312348
132241ac3064
141191d6c6c8
159030312d5
hex560e34468

23100343400 has 24 divisors (see below), whose sum is σ = 53708298870. Its totient is φ = 9240137280.

The previous prime is 23100343397. The next prime is 23100343421. The reversal of 23100343400 is 434300132.

It can be written as a sum of positive squares in 3 ways, for example, as 10030823716 + 13069519684 = 100154^2 + 114322^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57750659 + ... + 57751058.

Almost surely, 223100343400 is an apocalyptic number.

23100343400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23100343400 is an abundant number, since it is smaller than the sum of its proper divisors (30607955470).

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

23100343400 is a wasteful number, since it uses less digits than its factorization.

23100343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115501733 (or 115501724 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23100343400 its reverse (434300132), we get a palindrome (23534643532).

The spelling of 23100343400 in words is "twenty-three billion, one hundred million, three hundred forty-three thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 115501717 231003434 462006868 577508585 924013736 1155017170 2310034340 2887542925 4620068680 5775085850 11550171700 23100343400