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153031742 = 2238294013
BaseRepresentation
bin10010001111100…
…01010000111110
3101122221211002022
421013301100332
5303134003432
623104000142
73535514453
oct1107612076
9348854068
10153031742
1179423016
1243300052
1325920b36
141647782a
15d67cb12
hex91f143e

153031742 has 16 divisors (see below), whose sum is σ = 239876640. Its totient is φ = 73082592.

The previous prime is 153031729. The next prime is 153031751. The reversal of 153031742 is 247130351.

153031742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 36128 + ... + 40140.

It is an arithmetic number, because the mean of its divisors is an integer number (14992290).

Almost surely, 2153031742 is an apocalyptic number.

153031742 is a deficient number, since it is larger than the sum of its proper divisors (86844898).

153031742 is a wasteful number, since it uses less digits than its factorization.

153031742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 153031742 is about 12370.5999046125. The cubic root of 153031742 is about 534.8851088195.

The spelling of 153031742 in words is "one hundred fifty-three million, thirty-one thousand, seven hundred forty-two".

Divisors: 1 2 23 46 829 1658 4013 8026 19067 38134 92299 184598 3326777 6653554 76515871 153031742