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120042132 = 22378916057
BaseRepresentation
bin1110010011110…
…11001010010100
322100212202211220
413021323022110
5221212322012
615524530340
72655225030
oct711731224
9270782756
10120042132
1161840481
12342509b0
131bb40162
1411d2b1c0
15a81308c
hex727b294

120042132 has 48 divisors (see below), whose sum is σ = 323729280. Its totient is φ = 33910272.

The previous prime is 120042127. The next prime is 120042161. The reversal of 120042132 is 231240021.

It is a super-2 number, since 2×1200421322 = 28820226910210848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553 + ... + 15504.

It is an arithmetic number, because the mean of its divisors is an integer number (6744360).

Almost surely, 2120042132 is an apocalyptic number.

120042132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120042132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161864640).

120042132 is an abundant number, since it is smaller than the sum of its proper divisors (203687148).

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

120042132 is a wasteful number, since it uses less digits than its factorization.

120042132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16160 (or 16158 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 120042132 is about 10956.3740352363. The cubic root of 120042132 is about 493.3001339155.

Adding to 120042132 its reverse (231240021), we get a palindrome (351282153).

The spelling of 120042132 in words is "one hundred twenty million, forty-two thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 89 178 267 356 534 623 1068 1246 1869 2492 3738 7476 16057 32114 48171 64228 96342 112399 192684 224798 337197 449596 674394 1348788 1429073 2858146 4287219 5716292 8574438 10003511 17148876 20007022 30010533 40014044 60021066 120042132