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312142898970 = 233571922319891
BaseRepresentation
bin1001000101011010010…
…10101010011100011010
31002211200202221012122000
410202231022222130122
520103232040231340
6355221345341430
731360122602220
oct4425512523432
91084622835560
10312142898970
1111041958aaa1
12505b4037876
1323586777126
1411171b1ab10
1581bd759d30
hex48ad2aa71a

312142898970 has 384 divisors, whose sum is σ = 1047700500480. Its totient is φ = 64649819520.

The previous prime is 312142898953. The next prime is 312142899001. The reversal of 312142898970 is 79898241213.

312142898970 is a `hidden beast` number, since 3 + 1 + 214 + 289 + 89 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15682725 + ... + 15702615.

It is an arithmetic number, because the mean of its divisors is an integer number (2728386720).

Almost surely, 2312142898970 is an apocalyptic number.

312142898970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312142898970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523850250240).

312142898970 is an abundant number, since it is smaller than the sum of its proper divisors (735557601510).

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

312142898970 is a wasteful number, since it uses less digits than its factorization.

312142898970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19975 (or 19950 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 312142898970 in words is "three hundred twelve billion, one hundred forty-two million, eight hundred ninety-eight thousand, nine hundred seventy".