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215030488 = 2350353437
BaseRepresentation
bin11001101000100…
…01101011011000
3112222121200101011
430310101223120
5420021433423
633200503304
75220505021
oct1464215330
9488550334
10215030488
11100419652
126001ab34
133571a79a
14207b5c48
1513d27b0d
hexcd11ad8

215030488 has 16 divisors (see below), whose sum is σ = 403991280. Its totient is φ = 107299488.

The previous prime is 215030471. The next prime is 215030521. The reversal of 215030488 is 884030512.

It is a super-2 number, since 2×2150304882 = 92476221539036288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22695 + ... + 30742.

It is an arithmetic number, because the mean of its divisors is an integer number (25249455).

Almost surely, 2215030488 is an apocalyptic number.

It is an amenable number.

215030488 is a deficient number, since it is larger than the sum of its proper divisors (188960792).

215030488 is a wasteful number, since it uses less digits than its factorization.

215030488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53946 (or 53942 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 215030488 is about 14663.9178939327. The cubic root of 215030488 is about 599.1009572468.

The spelling of 215030488 in words is "two hundred fifteen million, thirty thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 503 1006 2012 4024 53437 106874 213748 427496 26878811 53757622 107515244 215030488