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5078008221 = 31113111710597
BaseRepresentation
bin1001011101010110…
…00100000110011101
3111002220011112201120
410232223010012131
540344432230341
62155515201153
7236560233456
oct45653040635
914086145646
105078008221
112176448810
12b987461b9
1362c0724c0
143625aa12d
151eac15066
hex12eac419d

5078008221 has 32 divisors (see below), whose sum is σ = 7962235008. Its totient is φ = 2838032640.

The previous prime is 5078008217. The next prime is 5078008237. The reversal of 5078008221 is 1228008705.

It is not a de Polignac number, because 5078008221 - 22 = 5078008217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5078008421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473895 + ... + 484491.

It is an arithmetic number, because the mean of its divisors is an integer number (248819844).

Almost surely, 25078008221 is an apocalyptic number.

It is an amenable number.

5078008221 is a deficient number, since it is larger than the sum of its proper divisors (2884226787).

5078008221 is a wasteful number, since it uses less digits than its factorization.

5078008221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 5078008221 is about 71260.1446883179. The cubic root of 5078008221 is about 1718.8229080151.

The spelling of 5078008221 in words is "five billion, seventy-eight million, eight thousand, two hundred twenty-one".

Divisors: 1 3 11 13 33 39 143 429 1117 3351 10597 12287 14521 31791 36861 43563 116567 137761 159731 349701 413283 479193 1515371 4546113 11836849 35510547 130205339 153879037 390616017 461637111 1692669407 5078008221