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58307990 = 25132319501
BaseRepresentation
bin1101111001101…
…1010110010110
311001201100112012
43132123112112
5104411323430
65441424222
71305416066
oct336332626
9131640465
1058307990
112aa05724
121763b072
13c106a90
147a5b3a6
1551bb695
hex379b596

58307990 has 32 divisors (see below), whose sum is σ = 117948096. Its totient is φ = 20592000.

The previous prime is 58307987. The next prime is 58307999. The reversal of 58307990 is 9970385.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58307999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6761 + ... + 12740.

It is an arithmetic number, because the mean of its divisors is an integer number (3685878).

Almost surely, 258307990 is an apocalyptic number.

58307990 is an abundant number, since it is smaller than the sum of its proper divisors (59640106).

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

58307990 is a wasteful number, since it uses less digits than its factorization.

58307990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19544.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 58307990 is about 7635.9668673980. The cubic root of 58307990 is about 387.7716222541.

The spelling of 58307990 in words is "fifty-eight million, three hundred seven thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 23 26 46 65 115 130 230 299 598 1495 2990 19501 39002 97505 195010 253513 448523 507026 897046 1267565 2242615 2535130 4485230 5830799 11661598 29153995 58307990