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58249891 = 771117203
BaseRepresentation
bin1101111000110…
…1001010100011
311001121101211101
43132031022203
5104402444031
65440255231
71305054520
oct336151243
9131541741
1058249891
112a976007
1217611517
13c0b64bb
147a44147
1551a9361
hex378d2a3

58249891 has 8 divisors (see below), whose sum is σ = 67509504. Its totient is φ = 49224840.

The previous prime is 58249883. The next prime is 58249913. The reversal of 58249891 is 19894285.

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

It is not a de Polignac number, because 58249891 - 23 = 58249883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58249861) 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, 58105 + ... + 59098.

It is an arithmetic number, because the mean of its divisors is an integer number (8438688).

Almost surely, 258249891 is an apocalyptic number.

58249891 is a deficient number, since it is larger than the sum of its proper divisors (9259613).

58249891 is a wasteful number, since it uses less digits than its factorization.

58249891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117281.

The product of its digits is 207360, while the sum is 46.

The square root of 58249891 is about 7632.1616204061. The cubic root of 58249891 is about 387.6427855348.

The spelling of 58249891 in words is "fifty-eight million, two hundred forty-nine thousand, eight hundred ninety-one".

Divisors: 1 7 71 497 117203 820421 8321413 58249891