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20760871974 = 235929972
BaseRepresentation
bin10011010101011100…
…011100010000100110
31222120212020120101020
4103111130130100212
5320004240400344
613312025312010
71333321333353
oct232534342046
958525216336
1020760871974
118893a75437
124034935606
131c5b20ab3b
14100d38762a
15817964719
hex4d571c426

20760871974 has 36 divisors (see below), whose sum is σ = 42279837444. Its totient is φ = 6796174128.

The previous prime is 20760871969. The next prime is 20760871979. The reversal of 20760871974 is 47917806702.

It is an interprime number because it is at equal distance from previous prime (20760871969) and next prime (20760871979).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20760871979) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20822844 + ... + 20823840.

It is an arithmetic number, because the mean of its divisors is an integer number (1174439929).

Almost surely, 220760871974 is an apocalyptic number.

20760871974 is an abundant number, since it is smaller than the sum of its proper divisors (21518965470).

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

20760871974 is an frugal number, since it uses more digits than its factorization.

20760871974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 20760871974 in words is "twenty billion, seven hundred sixty million, eight hundred seventy-one thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 59 118 177 354 997 1994 2991 3481 5982 6962 10443 20886 58823 117646 176469 352938 994009 1988018 2982027 3470557 5964054 6941114 10411671 20823342 58646531 117293062 175939593 351879186 3460145329 6920290658 10380435987 20760871974