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76142469 = 31312715373
BaseRepresentation
bin1001000100111…
…01011110000101
312022021102211110
410202131132011
5123443024334
611315555233
71613125464
oct442353605
9168242743
1076142469
1139a86a67
12215bbb19
1312a0c620
14a1809db
156a40ae9
hex489d785

76142469 has 16 divisors (see below), whose sum is σ = 110200832. Its totient is φ = 46484928.

The previous prime is 76142419. The next prime is 76142477. The reversal of 76142469 is 96424167.

It is a happy number.

It is not a de Polignac number, because 76142469 - 29 = 76141957 is a prime.

It is a super-2 number, since 2×761424692 = 11595351170831922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76142419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2734 + ... + 12639.

It is an arithmetic number, because the mean of its divisors is an integer number (6887552).

Almost surely, 276142469 is an apocalyptic number.

It is an amenable number.

76142469 is a deficient number, since it is larger than the sum of its proper divisors (34058363).

76142469 is a wasteful number, since it uses less digits than its factorization.

76142469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15516.

The product of its digits is 72576, while the sum is 39.

The square root of 76142469 is about 8725.9652188168. The cubic root of 76142469 is about 423.8468745893.

The spelling of 76142469 in words is "seventy-six million, one hundred forty-two thousand, four hundred sixty-nine".

Divisors: 1 3 13 39 127 381 1651 4953 15373 46119 199849 599547 1952371 5857113 25380823 76142469