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407925747331 = 7128120446381
BaseRepresentation
bin1011110111110100100…
…01001110111010000011
31102222221001021001101021
411323322101032322003
523140412442403311
6511222024250311
741320531433044
oct5737221167203
91388831231337
10407925747331
111480004a4703
1267085610997
132c60c68406b
1415a5aa5c8cb
15a927628171
hex5efa44ee83

407925747331 has 8 divisors (see below), whose sum is σ = 415143340128. Its totient is φ = 400749048000.

The previous prime is 407925747253. The next prime is 407925747337. The reversal of 407925747331 is 133747529704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 407925747331 - 221 = 407923650179 is a prime.

It is a super-2 number, since 2×4079257473312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407925747337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10203240 + ... + 10243141.

It is an arithmetic number, because the mean of its divisors is an integer number (51892917516).

Almost surely, 2407925747331 is an apocalyptic number.

407925747331 is a deficient number, since it is larger than the sum of its proper divisors (7217592797).

407925747331 is a wasteful number, since it uses less digits than its factorization.

407925747331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20446733.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 407925747331 in words is "four hundred seven billion, nine hundred twenty-five million, seven hundred forty-seven thousand, three hundred thirty-one".

Divisors: 1 71 281 19951 20446381 1451693051 5745433061 407925747331