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38855013120 = 2834571131157
BaseRepresentation
bin100100001011111100…
…000111001100000000
310201021212120011210000
4210023330013030000
51114033340404440
625503313440000
72543602106430
oct441374071400
9121255504700
1038855013120
11155297074a0
127644570000
133882ab0231
141c484bc2c0
151026216730
hex90bf07300

38855013120 has 1440 divisors, whose sum is σ = 180067700736. Its totient is φ = 7763558400.

The previous prime is 38855013101. The next prime is 38855013139. The reversal of 38855013120 is 2131055883.

38855013120 is a `hidden beast` number, since 3 + 88 + 550 + 1 + 3 + 1 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (38855013101) and next prime (38855013139).

It is a tau number, because it is divible by the number of its divisors (1440).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 247484082 + ... + 247484238.

Almost surely, 238855013120 is an apocalyptic number.

38855013120 is a gapful number since it is divisible by the number (30) 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 38855013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90033850368).

38855013120 is an abundant number, since it is smaller than the sum of its proper divisors (141212687616).

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

38855013120 is a wasteful number, since it uses less digits than its factorization.

38855013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 38855013120 in words is "thirty-eight billion, eight hundred fifty-five million, thirteen thousand, one hundred twenty".