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23103524540 = 2252964162143
BaseRepresentation
bin10101100001000100…
…111100111010111100
32012122010100122120002
4111201010330322330
5334304000241130
614340312413432
71445345501255
oct254104747274
965563318502
1023103524540
119886378a38
1245893a7278
132242667ca5
141192559b2c
1590345db45
hex56113cebc

23103524540 has 48 divisors (see below), whose sum is σ = 50269524480. Its totient is φ = 8908677120.

The previous prime is 23103524539. The next prime is 23103524557. The reversal of 23103524540 is 4542530132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340709 + ... + 402851.

It is an arithmetic number, because the mean of its divisors is an integer number (1047281760).

Almost surely, 223103524540 is an apocalyptic number.

23103524540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23103524540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25134762240).

23103524540 is an abundant number, since it is smaller than the sum of its proper divisors (27165999940).

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

23103524540 is a wasteful number, since it uses less digits than its factorization.

23103524540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62822 (or 62820 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 23103524540 in words is "twenty-three billion, one hundred three million, five hundred twenty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 641 1282 2564 3205 6410 12820 18589 37178 62143 74356 92945 124286 185890 248572 310715 371780 621430 1242860 1802147 3604294 7208588 9010735 18021470 36042940 39833663 79667326 159334652 199168315 398336630 796673260 1155176227 2310352454 4620704908 5775881135 11551762270 23103524540