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38079391386 = 23192753121333
BaseRepresentation
bin100011011101101101…
…010110011010011010
310122021211002111210010
4203131231112122122
51110441311011021
625254325302350
72515433325531
oct433555263232
9118254074703
1038079391386
11151709073a3
1274688649b6
13378b1b456a
141bb349b318
15ecd0a7976
hex8ddb5669a

38079391386 has 32 divisors (see below), whose sum is σ = 80196920640. Its totient is φ = 12020603904.

The previous prime is 38079391373. The next prime is 38079391411. The reversal of 38079391386 is 68319397083.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253176 + ... + 374508.

It is an arithmetic number, because the mean of its divisors is an integer number (2506153770).

Almost surely, 238079391386 is an apocalyptic number.

38079391386 is an abundant number, since it is smaller than the sum of its proper divisors (42117529254).

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

38079391386 is a wasteful number, since it uses less digits than its factorization.

38079391386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124110.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 38079391386 in words is "thirty-eight billion, seventy-nine million, three hundred ninety-one thousand, three hundred eighty-six".

Divisors: 1 2 3 6 19 38 57 114 2753 5506 8259 16518 52307 104614 121333 156921 242666 313842 363999 727998 2305327 4610654 6915981 13831962 334029749 668059498 1002089247 2004178494 6346565231 12693130462 19039695693 38079391386