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147984142 = 2313317211
BaseRepresentation
bin10001101001000…
…00111100001110
3101022110101002011
420310200330032
5300340443032
622403451434
73444562435
oct1064407416
9338411064
10147984142
1176595749
1241686b7a
13248744a7
141592211c
15ced2247
hex8d20f0e

147984142 has 16 divisors (see below), whose sum is σ = 229860864. Its totient is φ = 71379000.

The previous prime is 147984107. The next prime is 147984149. The reversal of 147984142 is 241489741.

It is a junction number, because it is equal to n+sod(n) for n = 147984095 and 147984104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147984149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16917 + ... + 24127.

It is an arithmetic number, because the mean of its divisors is an integer number (14366304).

Almost surely, 2147984142 is an apocalyptic number.

147984142 is a deficient number, since it is larger than the sum of its proper divisors (81876722).

147984142 is a wasteful number, since it uses less digits than its factorization.

147984142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575.

The product of its digits is 64512, while the sum is 40.

The square root of 147984142 is about 12164.8732833515. The cubic root of 147984142 is about 528.9383542432.

The spelling of 147984142 in words is "one hundred forty-seven million, nine hundred eighty-four thousand, one hundred forty-two".

Divisors: 1 2 31 62 331 662 7211 10261 14422 20522 223541 447082 2386841 4773682 73992071 147984142