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10918382920 = 2351731577801
BaseRepresentation
bin10100010101100100…
…10100110101001000
31001011220212022122121
422022302110311020
5134330101223140
65003230501024
7534365503114
oct121262246510
931156768577
1010918382920
1146a3162765
122148664774
13105004c213
14758106744
1543d81b64a
hex28ac94d48

10918382920 has 32 divisors (see below), whose sum is σ = 24708379320. Its totient is φ = 4342105600.

The previous prime is 10918382899. The next prime is 10918382929. The reversal of 10918382920 is 2928381901.

It can be written as a sum of positive squares in 4 ways, for example, as 10863059076 + 55323844 = 104226^2 + 7438^2 .

It is a super-2 number, since 2×109183829202 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10918382929) 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, 781981 + ... + 795820.

Almost surely, 210918382920 is an apocalyptic number.

10918382920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10918382920 is an abundant number, since it is smaller than the sum of its proper divisors (13789996400).

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

10918382920 is a wasteful number, since it uses less digits than its factorization.

10918382920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577985 (or 1577981 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 10918382920 in words is "ten billion, nine hundred eighteen million, three hundred eighty-two thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 173 346 692 865 1384 1730 3460 6920 1577801 3155602 6311204 7889005 12622408 15778010 31556020 63112040 272959573 545919146 1091838292 1364797865 2183676584 2729595730 5459191460 10918382920