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139153470 = 2354638449
BaseRepresentation
bin10000100101101…
…01000000111110
3100200211201200020
420102311000332
5241110402340
621450313010
73306533151
oct1022650076
9320751606
10139153470
1171604075
123a728766
1322aa1c41
14146a3c98
15c33a9d0
hex84b503e

139153470 has 16 divisors (see below), whose sum is σ = 333968400. Its totient is φ = 37107584.

The previous prime is 139153429. The next prime is 139153481. The reversal of 139153470 is 74351931.

It is a congruent number.

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, 2319195 + ... + 2319254.

It is an arithmetic number, because the mean of its divisors is an integer number (20873025).

Almost surely, 2139153470 is an apocalyptic number.

139153470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139153470 is an abundant number, since it is smaller than the sum of its proper divisors (194814930).

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

139153470 is a wasteful number, since it uses less digits than its factorization.

139153470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638459.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 139153470 is about 11796.3329047632. The cubic root of 139153470 is about 518.2007217425.

The spelling of 139153470 in words is "one hundred thirty-nine million, one hundred fifty-three thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 4638449 9276898 13915347 23192245 27830694 46384490 69576735 139153470