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32101980 = 2235535033
BaseRepresentation
bin111101001110…
…1011001011100
32020101221122020
41322131121130
531204230410
63104020140
7536601531
oct172353134
966357566
1032101980
1117136769
12a901650
13685c971
144398d88
152c41a70
hex1e9d65c

32101980 has 24 divisors (see below), whose sum is σ = 89885712. Its totient is φ = 8560512.

The previous prime is 32101973. The next prime is 32101981. The reversal of 32101980 is 8910123.

It is a self number, because there is not a number n which added to its sum of digits gives 32101980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32101981) 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, 267457 + ... + 267576.

It is an arithmetic number, because the mean of its divisors is an integer number (3745238).

Almost surely, 232101980 is an apocalyptic number.

32101980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32101980 is an abundant number, since it is smaller than the sum of its proper divisors (57783732).

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

32101980 is a wasteful number, since it uses less digits than its factorization.

32101980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535045 (or 535043 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 32101980 is about 5665.8609231078. The cubic root of 32101980 is about 317.8171093436.

The spelling of 32101980 in words is "thirty-two million, one hundred one thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 535033 1070066 1605099 2140132 2675165 3210198 5350330 6420396 8025495 10700660 16050990 32101980