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134124123 = 372912409
BaseRepresentation
bin1111111111010…
…01001001011011
3100100101012201010
413333221021123
5233313432443
621150425003
73216015300
oct777511133
9310335633
10134124123
1169789491
1238b02163
1321a309b3
1413b550a7
15bb95733
hex7fe925b

134124123 has 12 divisors (see below), whose sum is σ = 208029480. Its totient is φ = 76642272.

The previous prime is 134124113. The next prime is 134124139. The reversal of 134124123 is 321421431.

It is not a de Polignac number, because 134124123 - 29 = 134123611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 134124123.

It is not an unprimeable number, because it can be changed into a prime (134124113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456058 + ... + 456351.

It is an arithmetic number, because the mean of its divisors is an integer number (17335790).

Almost surely, 2134124123 is an apocalyptic number.

134124123 is a deficient number, since it is larger than the sum of its proper divisors (73905357).

134124123 is an equidigital number, since it uses as much as digits as its factorization.

134124123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912426 (or 912419 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 134124123 is about 11581.1969588640. The cubic root of 134124123 is about 511.8809474070.

Adding to 134124123 its reverse (321421431), we get a palindrome (455545554).

The spelling of 134124123 in words is "one hundred thirty-four million, one hundred twenty-four thousand, one hundred twenty-three".

Divisors: 1 3 7 21 49 147 912409 2737227 6386863 19160589 44708041 134124123