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13698020 = 225797843
BaseRepresentation
bin110100010000…
…001111100100
3221202221011002
4310100033210
512001314040
61205332432
7224300630
oct64201744
927687132
1013698020
117806586
124707118
132ab7b4b
141b67dc0
151308a15
hexd103e4

13698020 has 24 divisors (see below), whose sum is σ = 32875584. Its totient is φ = 4696416.

The previous prime is 13698019. The next prime is 13698023. The reversal of 13698020 is 2089631.

It is not an unprimeable number, because it can be changed into a prime (13698023) 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, 48782 + ... + 49061.

It is an arithmetic number, because the mean of its divisors is an integer number (1369816).

Almost surely, 213698020 is an apocalyptic number.

13698020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13698020 is an abundant number, since it is smaller than the sum of its proper divisors (19177564).

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

13698020 is a wasteful number, since it uses less digits than its factorization.

13698020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97859 (or 97857 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13698020 is about 3701.0836251022. The cubic root of 13698020 is about 239.2687231462.

The spelling of 13698020 in words is "thirteen million, six hundred ninety-eight thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 97843 195686 391372 489215 684901 978430 1369802 1956860 2739604 3424505 6849010 13698020