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58257990 = 232571931157
BaseRepresentation
bin1101111000111…
…1001001000110
311001121210221100
43132033021012
5104403223430
65440400530
71305120240
oct336171106
9131553840
1058257990
112a9810aa
1217616146
13c0ba0ab
147a47090
1551ab960
hex378f246

58257990 has 192 divisors, whose sum is σ = 189296640. Its totient is φ = 12130560.

The previous prime is 58257973. The next prime is 58258001. The reversal of 58257990 is 9975285.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 370992 + ... + 371148.

It is an arithmetic number, because the mean of its divisors is an integer number (985920).

Almost surely, 258257990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58257990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94648320).

58257990 is an abundant number, since it is smaller than the sum of its proper divisors (131038650).

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

58257990 is a wasteful number, since it uses less digits than its factorization.

58257990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 58257990 is about 7632.6921855922. The cubic root of 58257990 is about 387.6607505093.

The spelling of 58257990 in words is "fifty-eight million, two hundred fifty-seven thousand, nine hundred ninety".