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139330368 = 263517231
BaseRepresentation
bin10000100111000…
…00001101000000
3100201011201100000
420103200031000
5241132032433
621454200000
73311200662
oct1023401500
9321151300
10139330368
1171714a71
123a7b3000
1322b34608
141470c532
15c373113
hex84e0340

139330368 has 252 divisors, whose sum is σ = 454143872. Its totient is φ = 42301440.

The previous prime is 139330339. The next prime is 139330369. The reversal of 139330368 is 863033931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139330369) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4494513 + ... + 4494543.

Almost surely, 2139330368 is an apocalyptic number.

139330368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139330368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227071936).

139330368 is an abundant number, since it is smaller than the sum of its proper divisors (314813504).

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

139330368 is an equidigital number, since it uses as much as digits as its factorization.

139330368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 139330368 is about 11803.8285314554. The cubic root of 139330368 is about 518.4202152611.

The spelling of 139330368 in words is "one hundred thirty-nine million, three hundred thirty thousand, three hundred sixty-eight".