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140615612142 = 2397411158771
BaseRepresentation
bin1000001011110101010…
…1111111011011101110
3111102221202002012211220
42002331111333123232
54300440044042032
6144333052324210
713105404660615
oct2027525773356
9442852065756
10140615612142
11546a8935705
1223303a73666
131034c295a35
146b3d2ba87c
1539cecc512c
hex20bd57f6ee

140615612142 has 32 divisors (see below), whose sum is σ = 284204465664. Its totient is φ = 46376582400.

The previous prime is 140615612099. The next prime is 140615612147. The reversal of 140615612142 is 241216516041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140615612147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2363217 + ... + 2421987.

It is an arithmetic number, because the mean of its divisors is an integer number (8881389552).

Almost surely, 2140615612142 is an apocalyptic number.

140615612142 is an abundant number, since it is smaller than the sum of its proper divisors (143588853522).

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

140615612142 is a wasteful number, since it uses less digits than its factorization.

140615612142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62984.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 140615612142 in words is "one hundred forty billion, six hundred fifteen million, six hundred twelve thousand, one hundred forty-two".

Divisors: 1 2 3 6 97 194 291 582 4111 8222 12333 24666 58771 117542 176313 352626 398767 797534 1196301 2392602 5700787 11401574 17102361 34204722 241607581 483215162 724822743 1449645486 23435935357 46871870714 70307806071 140615612142