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138480702 = 23191214743
BaseRepresentation
bin10000100000100…
…00110000111110
3100122120112210220
420100100300332
5240422340302
621424042210
73301031553
oct1020206076
9318515726
10138480702
1171194668
123a463366
13228c7959
141456aa2a
15c2564bc
hex8410c3e

138480702 has 16 divisors (see below), whose sum is σ = 291538560. Its totient is φ = 43730712.

The previous prime is 138480697. The next prime is 138480703. The reversal of 138480702 is 207084831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138480703) 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, 607258 + ... + 607485.

It is an arithmetic number, because the mean of its divisors is an integer number (18221160).

Almost surely, 2138480702 is an apocalyptic number.

138480702 is an abundant number, since it is smaller than the sum of its proper divisors (153057858).

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

138480702 is a wasteful number, since it uses less digits than its factorization.

138480702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214767.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 138480702 is about 11767.7823739225. The cubic root of 138480702 is about 517.3642538770.

The spelling of 138480702 in words is "one hundred thirty-eight million, four hundred eighty thousand, seven hundred two".

Divisors: 1 2 3 6 19 38 57 114 1214743 2429486 3644229 7288458 23080117 46160234 69240351 138480702