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407012357 = 1921421703
BaseRepresentation
bin11000010000101…
…000010000000101
31001100212100222202
4120100220100011
51313143343412
6104215404245
713041355643
oct3020502005
91040770882
10407012357
11199825454
12b4383685
136642831b
143c0ac193
1525aeb3c2
hex18428405

407012357 has 4 divisors (see below), whose sum is σ = 428434080. Its totient is φ = 385590636.

The previous prime is 407012297. The next prime is 407012363. The reversal of 407012357 is 753210704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 407012357 - 26 = 407012293 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 (407011357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10710833 + ... + 10710870.

It is an arithmetic number, because the mean of its divisors is an integer number (107108520).

Almost surely, 2407012357 is an apocalyptic number.

It is an amenable number.

407012357 is a deficient number, since it is larger than the sum of its proper divisors (21421723).

407012357 is a wasteful number, since it uses less digits than its factorization.

407012357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21421722.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 407012357 is about 20174.5472563822. The cubic root of 407012357 is about 741.0870054821.

The spelling of 407012357 in words is "four hundred seven million, twelve thousand, three hundred fifty-seven".

Divisors: 1 19 21421703 407012357