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2107400407 = 7173512
BaseRepresentation
bin111110110011100…
…0110000011010111
312102212110000212221
41331213012003113
513303443303112
6545040523211
7103136415340
oct17547060327
95385400787
102107400407
11991633132
124a9920507
132777ac3b8
1415dc550c7
15c5029e07
hex7d9c60d7

2107400407 has 6 divisors (see below), whose sum is σ = 2408596424. Its totient is φ = 1806239100.

The previous prime is 2107400401. The next prime is 2107400411. The reversal of 2107400407 is 7040047012.

It is not a de Polignac number, because 2107400407 - 219 = 2106876119 is a prime.

It is a super-2 number, since 2×21074004072 = 8882272950847531298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2107400401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112782 + ... + 130132.

Almost surely, 22107400407 is an apocalyptic number.

2107400407 is a deficient number, since it is larger than the sum of its proper divisors (301196017).

2107400407 is an frugal number, since it uses more digits than its factorization.

2107400407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34709 (or 17358 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 2107400407 is about 45906.4309982817. The cubic root of 2107400407 is about 1282.0816565208.

Adding to 2107400407 its reverse (7040047012), we get a palindrome (9147447419).

The spelling of 2107400407 in words is "two billion, one hundred seven million, four hundred thousand, four hundred seven".

Divisors: 1 7 17351 121457 301057201 2107400407