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100919200020 = 22354339115969
BaseRepresentation
bin101110111111101000…
…0001100100100010100
3100122111020021112121220
41131333100030210110
53123140303400040
6114210040410340
710201605021642
oct1357720144424
9318436245556
10100919200020
1139888291741
12176857769b0
139694099392
144c55178192
152959caa2d0
hex177f40c914

100919200020 has 48 divisors (see below), whose sum is σ = 289145250240. Its totient is φ = 26285930496.

The previous prime is 100919200003. The next prime is 100919200037. The reversal of 100919200020 is 20002919001.

It is an interprime number because it is at equal distance from previous prime (100919200003) and next prime (100919200037).

It is a congruent number.

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, 19555405 + ... + 19560564.

It is an arithmetic number, because the mean of its divisors is an integer number (6023859380).

Almost surely, 2100919200020 is an apocalyptic number.

100919200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100919200020 is an abundant number, since it is smaller than the sum of its proper divisors (188226050220).

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

100919200020 is a wasteful number, since it uses less digits than its factorization.

100919200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39116024 (or 39116022 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The spelling of 100919200020 in words is "one hundred billion, nine hundred nineteen million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 39115969 78231938 117347907 156463876 195579845 234695814 391159690 469391628 586739535 782319380 1173479070 1681986667 2346958140 3363973334 5045960001 6727946668 8409933335 10091920002 16819866670 20183840004 25229800005 33639733340 50459600010 100919200020