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1407551117 = 72109263537
BaseRepresentation
bin101001111100101…
…1000011010001101
310122002120000010212
41103321120122031
510340313113432
6351400412205
746610662400
oct12371303215
93562500125
101407551117
11662586a95
12333477065
131957c37ab
14d4d19d37
15838872b2
hex53e5868d

1407551117 has 12 divisors (see below), whose sum is σ = 1652383260. Its totient is φ = 1195399296.

The previous prime is 1407551111. The next prime is 1407551161. The reversal of 1407551117 is 7111557041.

It can be written as a sum of positive squares in 2 ways, for example, as 616479241 + 791071876 = 24829^2 + 28126^2 .

It is not a de Polignac number, because 1407551117 - 26 = 1407551053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1407551111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126428 + ... + 137109.

It is an arithmetic number, because the mean of its divisors is an integer number (137698605).

Almost surely, 21407551117 is an apocalyptic number.

It is an amenable number.

1407551117 is a deficient number, since it is larger than the sum of its proper divisors (244832143).

1407551117 is a wasteful number, since it uses less digits than its factorization.

1407551117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263660 (or 263653 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 32.

The square root of 1407551117 is about 37517.3442157091. The cubic root of 1407551117 is about 1120.6966109071.

The spelling of 1407551117 in words is "one billion, four hundred seven million, five hundred fifty-one thousand, one hundred seventeen".

Divisors: 1 7 49 109 763 5341 263537 1844759 12913313 28725533 201078731 1407551117