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7214428715 = 513424126171
BaseRepresentation
bin1101011100000001…
…10111001000101011
3200121210012221200112
412232000313020223
5104233343204330
63151514124535
7343531426604
oct65600671053
920553187615
107214428715
1130723a208a
12149412074b
138ac872840
144c6216dab
152c3573795
hex1ae03722b

7214428715 has 16 divisors (see below), whose sum is σ = 9325816416. Its totient is φ = 5326118400.

The previous prime is 7214428693. The next prime is 7214428721. The reversal of 7214428715 is 5178244127.

It is not a de Polignac number, because 7214428715 - 212 = 7214424619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262580 + ... + 288750.

It is an arithmetic number, because the mean of its divisors is an integer number (582863526).

Almost surely, 27214428715 is an apocalyptic number.

7214428715 is a deficient number, since it is larger than the sum of its proper divisors (2111387701).

7214428715 is a wasteful number, since it uses less digits than its factorization.

7214428715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30430.

The product of its digits is 125440, while the sum is 41.

The square root of 7214428715 is about 84937.7932077353. The cubic root of 7214428715 is about 1932.2677947494.

The spelling of 7214428715 in words is "seven billion, two hundred fourteen million, four hundred twenty-eight thousand, seven hundred fifteen".

Divisors: 1 5 13 65 4241 21205 26171 55133 130855 275665 340223 1701115 110991211 554956055 1442885743 7214428715