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76381370 = 2513587549
BaseRepresentation
bin1001000110101…
…11110010111010
312022201120112122
410203113302322
5124023200440
611325041242
71615142132
oct443276272
9168646478
1076381370
113a12a4aa
12216b6222
1312a942a0
14a203ac2
156a8b7b5
hex48d7cba

76381370 has 16 divisors (see below), whose sum is σ = 148062600. Its totient is φ = 28202304.

The previous prime is 76381369. The next prime is 76381379. The reversal of 76381370 is 7318367.

It can be written as a sum of positive squares in 4 ways, for example, as 21724921 + 54656449 = 4661^2 + 7393^2 .

It is a super-2 number, since 2×763813702 = 11668227366153800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76381370.

It is not an unprimeable number, because it can be changed into a prime (76381379) 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, 293645 + ... + 293904.

Almost surely, 276381370 is an apocalyptic number.

76381370 is a deficient number, since it is larger than the sum of its proper divisors (71681230).

76381370 is a wasteful number, since it uses less digits than its factorization.

76381370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587569.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 76381370 is about 8739.6435854101. The cubic root of 76381370 is about 424.2896924085.

The spelling of 76381370 in words is "seventy-six million, three hundred eighty-one thousand, three hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 587549 1175098 2937745 5875490 7638137 15276274 38190685 76381370