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38990254080 = 212352979277
BaseRepresentation
bin100100010100000000…
…000001000000000000
310201122022001010111110
4210110000001000000
51114323001112310
625524544243320
72550133456101
oct442400010000
9121568033443
1038990254080
1115598a88a88
127681910540
1338a4b1237b
141c5c4443a8
15103302cd20
hex914001000

38990254080 has 416 divisors, whose sum is σ = 131160844800. Its totient is φ = 9876013056.

The previous prime is 38990254067. The next prime is 38990254091. The reversal of 38990254080 is 8045209983.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140758902 + ... + 140759178.

Almost surely, 238990254080 is an apocalyptic number.

38990254080 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 38990254080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65580422400).

38990254080 is an abundant number, since it is smaller than the sum of its proper divisors (92170590720).

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

38990254080 is a wasteful number, since it uses less digits than its factorization.

38990254080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 38990254080 in words is "thirty-eight billion, nine hundred ninety million, two hundred fifty-four thousand, eighty".