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13890702 = 237330731
BaseRepresentation
bin110100111111…
…010010001110
3222010201110110
4310333102032
512024000302
61213420450
7226032450
oct64772216
928121413
1013890702
117928321
12479a726
132b54767
141bb82d0
151345b6c
hexd3f48e

13890702 has 16 divisors (see below), whose sum is σ = 31750272. Its totient is φ = 3968760.

The previous prime is 13890661. The next prime is 13890703. The reversal of 13890702 is 20709831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13890702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890703) 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, 165324 + ... + 165407.

It is an arithmetic number, because the mean of its divisors is an integer number (1984392).

Almost surely, 213890702 is an apocalyptic number.

13890702 is an abundant number, since it is smaller than the sum of its proper divisors (17859570).

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

13890702 is a wasteful number, since it uses less digits than its factorization.

13890702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330743.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 13890702 is about 3727.0232089430. The cubic root of 13890702 is about 240.3853877643.

The spelling of 13890702 in words is "thirteen million, eight hundred ninety thousand, seven hundred two".

Divisors: 1 2 3 6 7 14 21 42 330731 661462 992193 1984386 2315117 4630234 6945351 13890702