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406696707 = 3861987
BaseRepresentation
bin11000001111011…
…011001100000011
31001100021100000000
4120033123030003
51313103243312
6104204531043
713035602454
oct3017331403
91040240000
10406696707
1119962a28a
12b4250a83
1366347751
143c02912b
1525a87adc
hex183db303

406696707 has 18 divisors (see below), whose sum is σ = 610023908. Its totient is φ = 271126764.

The previous prime is 406696681. The next prime is 406696727. The reversal of 406696707 is 707696604.

It is not a de Polignac number, because 406696707 - 26 = 406696643 is a prime.

It is a super-2 number, since 2×4066967072 = 330804422969287698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406696727) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24433 + ... + 37554.

Almost surely, 2406696707 is an apocalyptic number.

406696707 is a deficient number, since it is larger than the sum of its proper divisors (203327201).

406696707 is an frugal number, since it uses more digits than its factorization.

406696707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62011 (or 61990 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 406696707 is about 20166.7227630074. The cubic root of 406696707 is about 740.8953777121.

The spelling of 406696707 in words is "four hundred six million, six hundred ninety-six thousand, seven hundred seven".

Divisors: 1 3 9 27 81 243 729 2187 6561 61987 185961 557883 1673649 5020947 15062841 45188523 135565569 406696707