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58121740 = 2258573391
BaseRepresentation
bin1101110110110…
…1111000001100
311001100220001001
43131231320030
5104334343430
65433430044
71304012065
oct335557014
9131326031
1058121740
112a8987a6
121756b324
13c070081
147a0d56c
1551813ca
hex376de0c

58121740 has 24 divisors (see below), whose sum is σ = 122234112. Its totient is φ = 23214720.

The previous prime is 58121719. The next prime is 58121747. The reversal of 58121740 is 4712185.

It is a junction number, because it is equal to n+sod(n) for n = 58121699 and 58121708.

It is not an unprimeable number, because it can be changed into a prime (58121747) 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, 15445 + ... + 18835.

It is an arithmetic number, because the mean of its divisors is an integer number (5093088).

Almost surely, 258121740 is an apocalyptic number.

It is an amenable number.

58121740 is an abundant number, since it is smaller than the sum of its proper divisors (64112372).

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

58121740 is a wasteful number, since it uses less digits than its factorization.

58121740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257 (or 4255 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 58121740 is about 7623.7615387681. The cubic root of 58121740 is about 387.3583026836.

The spelling of 58121740 in words is "fifty-eight million, one hundred twenty-one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 857 1714 3391 3428 4285 6782 8570 13564 16955 17140 33910 67820 2906087 5812174 11624348 14530435 29060870 58121740