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58478431 = 1131171491
BaseRepresentation
bin1101111100010…
…0111101011111
311002001000022211
43133010331133
5104432302211
65445221251
71310026024
oct337047537
9132030284
1058478431
1130011790
1217701827
13c16652b
147aa354b
155201e21
hex37c4f5f

58478431 has 8 divisors (see below), whose sum is σ = 65852928. Its totient is φ = 51447000.

The previous prime is 58478417. The next prime is 58478461. The reversal of 58478431 is 13487485.

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

It is a de Polignac number, because none of the positive numbers 2k-58478431 is a prime.

It is a super-2 number, since 2×584784312 = 6839453784443522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58478401) 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, 85405 + ... + 86086.

It is an arithmetic number, because the mean of its divisors is an integer number (8231616).

Almost surely, 258478431 is an apocalyptic number.

58478431 is a deficient number, since it is larger than the sum of its proper divisors (7374497).

58478431 is a wasteful number, since it uses less digits than its factorization.

58478431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171533.

The product of its digits is 107520, while the sum is 40.

The square root of 58478431 is about 7647.1191307577. The cubic root of 58478431 is about 388.1490884703.

The spelling of 58478431 in words is "fifty-eight million, four hundred seventy-eight thousand, four hundred thirty-one".

Divisors: 1 11 31 341 171491 1886401 5316221 58478431