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215455010264 = 23132071682791
BaseRepresentation
bin1100100010101000011…
…1101000110111011000
3202121010102121112220222
43020222013220313120
512012222440312024
6242551220335212
721365114240654
oct3105207506730
9677112545828
10215455010264
118341281115a
123590b544508
13174181ca570
14a5dc909a64
1559101b685e
hex322a1e8dd8

215455010264 has 16 divisors (see below), whose sum is σ = 435053386320. Its totient is φ = 99440773920.

The previous prime is 215455010213. The next prime is 215455010297. The reversal of 215455010264 is 462010554512.

It is a super-2 number, since 2×2154550102642 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035841292 + ... + 1035841499.

It is an arithmetic number, because the mean of its divisors is an integer number (27190836645).

Almost surely, 2215455010264 is an apocalyptic number.

It is an amenable number.

215455010264 is an abundant number, since it is smaller than the sum of its proper divisors (219598376056).

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

215455010264 is a wasteful number, since it uses less digits than its factorization.

215455010264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071682810 (or 2071682806 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 215455010264 its reverse (462010554512), we get a palindrome (677465564776).

The spelling of 215455010264 in words is "two hundred fifteen billion, four hundred fifty-five million, ten thousand, two hundred sixty-four".

Divisors: 1 2 4 8 13 26 52 104 2071682791 4143365582 8286731164 16573462328 26931876283 53863752566 107727505132 215455010264