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123493029 = 31123316061
BaseRepresentation
bin1110101110001…
…01101010100101
322121101002120220
413113011222211
5223103234104
620130514553
73026446662
oct727055245
9277332526
10123493029
1163788160
1235435a59
131c77aaca
1412588a69
15ac957d9
hex75c5aa5

123493029 has 16 divisors (see below), whose sum is σ = 180408384. Its totient is φ = 74518400.

The previous prime is 123492997. The next prime is 123493061. The reversal of 123493029 is 920394321.

It is an interprime number because it is at equal distance from previous prime (123492997) and next prime (123493061).

It is not a de Polignac number, because 123493029 - 25 = 123492997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123493079) 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, 342 + ... + 15719.

It is an arithmetic number, because the mean of its divisors is an integer number (11275524).

Almost surely, 2123493029 is an apocalyptic number.

It is an amenable number.

123493029 is a deficient number, since it is larger than the sum of its proper divisors (56915355).

123493029 is a wasteful number, since it uses less digits than its factorization.

123493029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16308.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 123493029 is about 11112.7417409026. The cubic root of 123493029 is about 497.9825762843.

The spelling of 123493029 in words is "one hundred twenty-three million, four hundred ninety-three thousand, twenty-nine".

Divisors: 1 3 11 33 233 699 2563 7689 16061 48183 176671 530013 3742213 11226639 41164343 123493029