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101986285471488 = 283211371011076821
BaseRepresentation
bin10111001100000110001000…
…010100010100011100000000
3111101002210102120212010221100
4113030012020110110130000
5101331420403040041423
61000523504105454400
730324160141111215
oct2714061024243400
9441083376763840
10101986285471488
112a55016040a780
12b5317607a1400
1344ba35b280392
141b2823c099b0c
15bbcd6d758343
hex5cc188514700

101986285471488 has 432 divisors, whose sum is σ = 332715617331552. Its totient is φ = 29771919360000.

The previous prime is 101986285471409. The next prime is 101986285471501. The reversal of 101986285471488 is 884174582689101.

101986285471488 is a `hidden beast` number, since 1 + 0 + 1 + 9 + 8 + 6 + 28 + 54 + 71 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94172118 + ... + 95248938.

Almost surely, 2101986285471488 is an apocalyptic number.

101986285471488 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 101986285471488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166357808665776).

101986285471488 is an abundant number, since it is smaller than the sum of its proper divisors (230729331860064).

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

101986285471488 is a wasteful number, since it uses less digits than its factorization.

101986285471488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076992 (or 1076975 counting only the distinct ones).

The product of its (nonzero) digits is 247726080, while the sum is 72.

The spelling of 101986285471488 in words is "one hundred one trillion, nine hundred eighty-six billion, two hundred eighty-five million, four hundred seventy-one thousand, four hundred eighty-eight".