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407343138 = 23371834879
BaseRepresentation
bin11000010001111…
…001000000100010
31001101111011201220
4120101321000202
51313234440023
6104230435510
713044234216
oct3021710042
91041434656
10407343138
11199a30a24
12b4502b96
1366512a57
143c156946
1525b643e3
hex18479022

407343138 has 16 divisors (see below), whose sum is σ = 836705280. Its totient is φ = 132111216.

The previous prime is 407343113. The next prime is 407343143. The reversal of 407343138 is 831343704.

It is a junction number, because it is equal to n+sod(n) for n = 407343099 and 407343108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917218 + ... + 917661.

It is an arithmetic number, because the mean of its divisors is an integer number (52294080).

Almost surely, 2407343138 is an apocalyptic number.

407343138 is an abundant number, since it is smaller than the sum of its proper divisors (429362142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

407343138 is a wasteful number, since it uses less digits than its factorization.

407343138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834921.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 407343138 is about 20182.7435696934. The cubic root of 407343138 is about 741.2877128385.

The spelling of 407343138 in words is "four hundred seven million, three hundred forty-three thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 37 74 111 222 1834879 3669758 5504637 11009274 67890523 135781046 203671569 407343138