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100715020 = 2257719393
BaseRepresentation
bin1100000000011…
…00101000001100
321000111212000221
412000030220030
5201240340040
613554401124
72332030540
oct600145014
9230455027
10100715020
115193a75a
12298901a4
1317b340b3
14d539a20
158c9674a
hex600ca0c

100715020 has 24 divisors (see below), whose sum is σ = 241716384. Its totient is φ = 34530816.

The previous prime is 100715011. The next prime is 100715047. The reversal of 100715020 is 20517001.

It is a junction number, because it is equal to n+sod(n) for n = 100714985 and 100715003.

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, 359557 + ... + 359836.

It is an arithmetic number, because the mean of its divisors is an integer number (10071516).

Almost surely, 2100715020 is an apocalyptic number.

100715020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100715020 is an abundant number, since it is smaller than the sum of its proper divisors (141001364).

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

100715020 is a wasteful number, since it uses less digits than its factorization.

100715020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719409 (or 719407 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 100715020 is about 10035.6873207569. The cubic root of 100715020 is about 465.2625333692.

The spelling of 100715020 in words is "one hundred million, seven hundred fifteen thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 719393 1438786 2877572 3596965 5035751 7193930 10071502 14387860 20143004 25178755 50357510 100715020