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331010139 = 3312135353
BaseRepresentation
bin10011101110101…
…101000001011011
3212001212001112210
4103232231001123
51134214311024
652502410203
711126353065
oct2356550133
9761761483
10331010139
1115a9348a9
1292a30963
13537677b5
1431d66735
151e0d7129
hex13bad05b

331010139 has 8 divisors (see below), whose sum is σ = 441500752. Its totient is φ = 220596480.

The previous prime is 331010137. The next prime is 331010159. The reversal of 331010139 is 931010133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 331010139 - 21 = 331010137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331010137) 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, 8314 + ... + 27039.

It is an arithmetic number, because the mean of its divisors is an integer number (55187594).

Almost surely, 2331010139 is an apocalyptic number.

331010139 is a deficient number, since it is larger than the sum of its proper divisors (110490613).

331010139 is a wasteful number, since it uses less digits than its factorization.

331010139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38477.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 331010139 is about 18193.6840414469. The cubic root of 331010139 is about 691.7467045780.

The spelling of 331010139 in words is "three hundred thirty-one million, ten thousand, one hundred thirty-nine".

Divisors: 1 3 3121 9363 35353 106059 110336713 331010139