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315434880 = 27325232381
BaseRepresentation
bin10010110011010…
…010011110000000
3210222112202022100
4102303102132000
51121222404010
651144510400
710550103135
oct2263223600
9728482270
10315434880
11152066992
128977b400
1350473377
142dc7058c
151ca5c2c0
hex12cd2780

315434880 has 192 divisors, whose sum is σ = 1137071520. Its totient is φ = 80424960.

The previous prime is 315434869. The next prime is 315434891. The reversal of 315434880 is 88434513.

315434880 is a `hidden beast` number, since 31 + 543 + 4 + 8 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (315434869) and next prime (315434891).

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×3154348802 = 198998327041228800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131290 + ... + 133670.

Almost surely, 2315434880 is an apocalyptic number.

315434880 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 315434880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568535760).

315434880 is an abundant number, since it is smaller than the sum of its proper divisors (821636640).

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

315434880 is a wasteful number, since it uses less digits than its factorization.

315434880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 315434880 is about 17760.4864798237. The cubic root of 315434880 is about 680.7221854510.

The spelling of 315434880 in words is "three hundred fifteen million, four hundred thirty-four thousand, eight hundred eighty".