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10856980 = 2251928571
BaseRepresentation
bin101001011010…
…101000010100
3202102120222101
4221122220110
510234410410
61024411444
7161166001
oct51325024
922376871
1010856980
116146012
123776b84
132331964
1416288a8
15e46d3a
hexa5aa14

10856980 has 24 divisors (see below), whose sum is σ = 24000480. Its totient is φ = 4114080.

The previous prime is 10856977. The next prime is 10856983. The reversal of 10856980 is 8965801.

It is an interprime number because it is at equal distance from previous prime (10856977) and next prime (10856983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10856983) 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, 13906 + ... + 14665.

It is an arithmetic number, because the mean of its divisors is an integer number (1000020).

Almost surely, 210856980 is an apocalyptic number.

10856980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10856980 is an abundant number, since it is smaller than the sum of its proper divisors (13143500).

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

10856980 is a wasteful number, since it uses less digits than its factorization.

10856980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28599 (or 28597 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 10856980 is about 3294.9931714649. The cubic root of 10856980 is about 221.4299418180.

The spelling of 10856980 in words is "ten million, eight hundred fifty-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 28571 57142 114284 142855 285710 542849 571420 1085698 2171396 2714245 5428490 10856980