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10122031020 = 2235170998713
BaseRepresentation
bin10010110110101000…
…11110111110101100
3222010102101110012210
421123110132332230
5131212214443040
64352222130420
7505555562343
oct113324367654
928112343183
1010122031020
1143246937a2
121b65a20a10
13c5407598a
146c044ab5a
153e3965480
hex25b51efac

10122031020 has 48 divisors (see below), whose sum is σ = 28358557920. Its totient is φ = 2697601536.

The previous prime is 10122031019. The next prime is 10122031039. The reversal of 10122031020 is 2013022101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10122030987 and 10122031005.

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, 53184 + ... + 151896.

It is an arithmetic number, because the mean of its divisors is an integer number (590803290).

Almost surely, 210122031020 is an apocalyptic number.

10122031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10122031020 is an abundant number, since it is smaller than the sum of its proper divisors (18236526900).

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

10122031020 is a wasteful number, since it uses less digits than its factorization.

10122031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100434 (or 100432 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10122031020 its reverse (2013022101), we get a palindrome (12135053121).

The spelling of 10122031020 in words is "ten billion, one hundred twenty-two million, thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1709 3418 5127 6836 8545 10254 17090 20508 25635 34180 51270 98713 102540 197426 296139 394852 493565 592278 987130 1184556 1480695 1974260 2961390 5922780 168700517 337401034 506101551 674802068 843502585 1012203102 1687005170 2024406204 2530507755 3374010340 5061015510 10122031020