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32011109020 = 2251133138791
BaseRepresentation
bin11101110100000000…
…101100001010011100
310001121220112211022101
4131310000230022130
51011024320442040
622412233054444
72212156636312
oct356400541234
9101556484271
1032011109020
1112637489000
126254557424
133031c2ba37
1417995960b2
15c7548309a
hex77402c29c

32011109020 has 96 divisors (see below), whose sum is σ = 76327759872. Its totient is φ = 11264616000.

The previous prime is 32011109003. The next prime is 32011109023. The reversal of 32011109020 is 2090111023.

It is a super-2 number, since 2×320111090202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32011109023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805825 + ... + 844615.

It is an arithmetic number, because the mean of its divisors is an integer number (795080832).

Almost surely, 232011109020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32011109020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38163879936).

32011109020 is an abundant number, since it is smaller than the sum of its proper divisors (44316650852).

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

32011109020 is a wasteful number, since it uses less digits than its factorization.

32011109020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38864 (or 38840 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 32011109020 in words is "thirty-two billion, eleven million, one hundred nine thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 121 124 155 220 242 310 341 484 605 620 682 1210 1331 1364 1705 2420 2662 3410 3751 5324 6655 6820 7502 13310 15004 18755 26620 37510 38791 41261 75020 77582 82522 155164 165044 193955 206305 387910 412610 426701 775820 825220 853402 1202521 1706804 2133505 2405042 4267010 4693711 4810084 6012605 8534020 9387422 12025210 13227731 18774844 23468555 24050420 26455462 46937110 51630821 52910924 66138655 93874220 103261642 132277310 145505041 206523284 258154105 264554620 291010082 516308210 582020164 727525205 1032616420 1455050410 1600555451 2910100820 3201110902 6402221804 8002777255 16005554510 32011109020