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12520058 = 217221661
BaseRepresentation
bin101111110000…
…101001111010
3212120002021212
4233300221322
511201120213
61124203122
7211263425
oct57605172
925502255
1012520058
117081561
1242394a2
132794925
14193c9bc
1511749a8
hexbf0a7a

12520058 has 12 divisors (see below), whose sum is σ = 19950702. Its totient is φ = 5891520.

The previous prime is 12520051. The next prime is 12520091. The reversal of 12520058 is 85002521.

It can be written as a sum of positive squares in 3 ways, for example, as 12061729 + 458329 = 3473^2 + 677^2 .

It is not an unprimeable number, because it can be changed into a prime (12520051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10253 + ... + 11408.

Almost surely, 212520058 is an apocalyptic number.

12520058 is a deficient number, since it is larger than the sum of its proper divisors (7430644).

12520058 is a wasteful number, since it uses less digits than its factorization.

12520058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21697 (or 21680 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 12520058 is about 3538.3693984659. The cubic root of 12520058 is about 232.2035099944.

Adding to 12520058 its reverse (85002521), we get a palindrome (97522579).

The spelling of 12520058 in words is "twelve million, five hundred twenty thousand, fifty-eight".

Divisors: 1 2 17 34 289 578 21661 43322 368237 736474 6260029 12520058