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10242500640 = 253521338543
BaseRepresentation
bin10011000101000000…
…00010100000100000
3222102211001221110120
421202200002200200
5131434040010030
64412204200240
7511550550621
oct114240024040
928384057416
1010242500640
114386696369
121b9a239080
13c73005588
146d2449a48
153ee310010
hex262802820

10242500640 has 48 divisors (see below), whose sum is σ = 32263878528. Its totient is φ = 2731333376.

The previous prime is 10242500623. The next prime is 10242500659. The reversal of 10242500640 is 4600524201.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a self number, because there is not a number n which added to its sum of digits gives 10242500640.

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, 10668792 + ... + 10669751.

It is an arithmetic number, because the mean of its divisors is an integer number (672164136).

Almost surely, 210242500640 is an apocalyptic number.

10242500640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10242500640 is an abundant number, since it is smaller than the sum of its proper divisors (22021377888).

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

10242500640 is a wasteful number, since it uses less digits than its factorization.

10242500640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21338561 (or 21338553 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The spelling of 10242500640 in words is "ten billion, two hundred forty-two million, five hundred thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 21338543 42677086 64015629 85354172 106692715 128031258 170708344 213385430 256062516 320078145 341416688 426770860 512125032 640156290 682833376 853541720 1024250064 1280312580 1707083440 2048500128 2560625160 3414166880 5121250320 10242500640