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10201311020 = 225665376667
BaseRepresentation
bin10011000000000101…
…11010011100101100
3222022221120021221002
421200002322130230
5131343013423040
64404133255432
7510540466355
oct114002723454
928287507832
1010201311020
114365412a5a
121b88494578
13c67613414
146caba6d2c
153ea8c5a15
hex2600ba72c

10201311020 has 24 divisors (see below), whose sum is σ = 21426252624. Its totient is φ = 4079857856.

The previous prime is 10201311007. The next prime is 10201311031. The reversal of 10201311020 is 2011310201.

It is a junction number, because it is equal to n+sod(n) for n = 10201310992 and 10201311010.

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, 94727 + ... + 171393.

It is an arithmetic number, because the mean of its divisors is an integer number (892760526).

Almost surely, 210201311020 is an apocalyptic number.

10201311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201311020 is an abundant number, since it is smaller than the sum of its proper divisors (11224941604).

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

10201311020 is a wasteful number, since it uses less digits than its factorization.

10201311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83329 (or 83327 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10201311020 its reverse (2011310201), we get a palindrome (12212621221).

The spelling of 10201311020 in words is "ten billion, two hundred one million, three hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 6653 13306 26612 33265 66530 76667 133060 153334 306668 383335 766670 1533340 510065551 1020131102 2040262204 2550327755 5100655510 10201311020