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10870020 = 2232578627
BaseRepresentation
bin101001011101…
…110100000100
3202110020212100
4221131310010
510240320040
61024552100
7161252010
oct51356404
922406770
1010870020
116154897
123782630
132337885
14162d540
15e4ab30
hexa5dd04

10870020 has 72 divisors (see below), whose sum is σ = 37687104. Its totient is φ = 2484288.

The previous prime is 10870009. The next prime is 10870031. The reversal of 10870020 is 2007801.

It is an interprime number because it is at equal distance from previous prime (10870009) and next prime (10870031).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10869975 and 10870002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3054 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (523432).

Almost surely, 210870020 is an apocalyptic number.

10870020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10870020 is an abundant number, since it is smaller than the sum of its proper divisors (26817084).

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

10870020 is a wasteful number, since it uses less digits than its factorization.

10870020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8649 (or 8644 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 10870020 is about 3296.9713374550. The cubic root of 10870020 is about 221.5185573508.

Adding to 10870020 its reverse (2007801), we get a palindrome (12877821).

The spelling of 10870020 in words is "ten million, eight hundred seventy thousand, twenty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 8627 17254 25881 34508 43135 51762 60389 77643 86270 103524 120778 129405 155286 172540 181167 241556 258810 301945 310572 362334 388215 517620 543501 603890 724668 776430 905835 1087002 1207780 1552860 1811670 2174004 2717505 3623340 5435010 10870020