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58311992 = 23233110223
BaseRepresentation
bin1101111001110…
…0010100111000
311001201120000102
43132130110320
5104411440432
65441454532
71305433544
oct336342470
9131646012
1058311992
112aa08732
1217641448
13c10884b
147a5ca24
1551bc962
hex379c538

58311992 has 32 divisors (see below), whose sum is σ = 117780480. Its totient is φ = 26986080.

The previous prime is 58311983. The next prime is 58311997. The reversal of 58311992 is 29911385.

It is a super-2 number, since 2×583119922 = 6800576822016128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58311997) 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, 593 + ... + 10815.

It is an arithmetic number, because the mean of its divisors is an integer number (3680640).

Almost surely, 258311992 is an apocalyptic number.

It is an amenable number.

58311992 is an abundant number, since it is smaller than the sum of its proper divisors (59468488).

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

58311992 is a wasteful number, since it uses less digits than its factorization.

58311992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10283 (or 10279 counting only the distinct ones).

The product of its digits is 19440, while the sum is 38.

The square root of 58311992 is about 7636.2289122315. The cubic root of 58311992 is about 387.7804936885.

The spelling of 58311992 in words is "fifty-eight million, three hundred eleven thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 23 31 46 62 92 124 184 248 713 1426 2852 5704 10223 20446 40892 81784 235129 316913 470258 633826 940516 1267652 1881032 2535304 7288999 14577998 29155996 58311992