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769146740 = 22538457337
BaseRepresentation
bin101101110110000…
…011111101110100
31222121021200222022
4231312003331310
53033400143430
6204153252312
725026432215
oct5566037564
91877250868
10769146740
1136518836a
12195704098
13c346c71b
147421740c
15477d04e5
hex2dd83f74

769146740 has 12 divisors (see below), whose sum is σ = 1615208196. Its totient is φ = 307658688.

The previous prime is 769146727. The next prime is 769146751. The reversal of 769146740 is 47641967.

It can be written as a sum of positive squares in 2 ways, for example, as 534811876 + 234334864 = 23126^2 + 15308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 769146691 and 769146700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19228649 + ... + 19228688.

It is an arithmetic number, because the mean of its divisors is an integer number (134600683).

Almost surely, 2769146740 is an apocalyptic number.

It is an amenable number.

769146740 is an abundant number, since it is smaller than the sum of its proper divisors (846061456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

769146740 is a wasteful number, since it uses less digits than its factorization.

769146740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38457346 (or 38457344 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 769146740 is about 27733.4949113883. The cubic root of 769146740 is about 916.2269623774.

The spelling of 769146740 in words is "seven hundred sixty-nine million, one hundred forty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 38457337 76914674 153829348 192286685 384573370 769146740