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12520001332 = 2223627121701
BaseRepresentation
bin10111010100100000…
…00000111100110100
31012022112120222002001
423222100000330310
5201120110020312
65430203025044
7622154153416
oct135220007464
935275528061
1012520001332
11534523a343
122514b0b184
131246b00817
1486aadc9b6
154d423a057
hex2ea400f34

12520001332 has 24 divisors (see below), whose sum is σ = 22867310592. Its totient is φ = 5986596000.

The previous prime is 12520001323. The next prime is 12520001353. The reversal of 12520001332 is 23310002521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566082 + ... + 587782.

It is an arithmetic number, because the mean of its divisors is an integer number (952804608).

Almost surely, 212520001332 is an apocalyptic number.

It is an amenable number.

12520001332 is a deficient number, since it is larger than the sum of its proper divisors (10347309260).

12520001332 is a wasteful number, since it uses less digits than its factorization.

12520001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27999 (or 27997 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 12520001332 its reverse (23310002521), we get a palindrome (35830003853).

The spelling of 12520001332 in words is "twelve billion, five hundred twenty million, one thousand, three hundred thirty-two".

Divisors: 1 2 4 23 46 92 6271 12542 21701 25084 43402 86804 144233 288466 499123 576932 998246 1996492 136086971 272173942 544347884 3130000333 6260000666 12520001332