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1985362132 = 22133721672
BaseRepresentation
bin111011001010110…
…0011100011010100
312010100210211211211
41312111203203110
513031223042012
6525001111204
7100125204535
oct16625434324
95110724754
101985362132
11929759a56
12474a88504
132584207c0
1414b96868c
15b94706a7
hex765638d4

1985362132 has 54 divisors (see below), whose sum is σ = 3868667502. Its totient is φ = 886216896.

The previous prime is 1985362129. The next prime is 1985362177. The reversal of 1985362132 is 2312635891.

It can be written as a sum of positive squares in 3 ways, for example, as 731918916 + 1253443216 = 27054^2 + 35404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11888313 + ... + 11888479.

Almost surely, 21985362132 is an apocalyptic number.

It is an amenable number.

1985362132 is a deficient number, since it is larger than the sum of its proper divisors (1883305370).

1985362132 is a wasteful number, since it uses less digits than its factorization.

1985362132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 219 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 1985362132 is about 44557.4026621840. The cubic root of 1985362132 is about 1256.8397607031.

The spelling of 1985362132 in words is "one billion, nine hundred eighty-five million, three hundred sixty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 13 26 37 52 74 148 167 334 481 668 962 1369 1924 2171 2738 4342 5476 6179 8684 12358 17797 24716 27889 35594 55778 71188 80327 111556 160654 228623 321308 362557 457246 725114 914492 1031893 1450228 2063786 2972099 4127572 5944198 11888396 13414609 26829218 38180041 53658436 76360082 152720164 496340533 992681066 1985362132