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23100142040 = 235577503551
BaseRepresentation
bin10101100000111000…
…000011000111011000
32012121212222210122022
4111200320003013120
5334302114021130
614340112114012
71445304652613
oct254070030730
965555883568
1023100142040
119884478688
124588235908
132241a52501
141191d1917a
15902ee17e5
hex560e031d8

23100142040 has 16 divisors (see below), whose sum is σ = 51975319680. Its totient is φ = 9240056800.

The previous prime is 23100141959. The next prime is 23100142057. The reversal of 23100142040 is 4024100132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288751736 + ... + 288751815.

It is an arithmetic number, because the mean of its divisors is an integer number (3248457480).

Almost surely, 223100142040 is an apocalyptic number.

23100142040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23100142040 is an abundant number, since it is smaller than the sum of its proper divisors (28875177640).

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

23100142040 is a wasteful number, since it uses less digits than its factorization.

23100142040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577503562 (or 577503558 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 23100142040 its reverse (4024100132), we get a palindrome (27124242172).

The spelling of 23100142040 in words is "twenty-three billion, one hundred million, one hundred forty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 577503551 1155007102 2310014204 2887517755 4620028408 5775035510 11550071020 23100142040