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764350140 = 223578716187
BaseRepresentation
bin101101100011110…
…000111010111100
31222021021000021110
4231203300322330
53031133201030
6203502402020
724640604031
oct5543607274
91867230243
10764350140
11362501634
12193b90310
13c24803b8
1473729388
15471841b0
hex2d8f0ebc

764350140 has 48 divisors (see below), whose sum is σ = 2143032192. Its totient is φ = 203555136.

The previous prime is 764350127. The next prime is 764350151. The reversal of 764350140 is 41053467.

It is a super-2 number, since 2×7643501402 = 1168462273036039200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 764350098 and 764350107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39127 + ... + 55313.

It is an arithmetic number, because the mean of its divisors is an integer number (44646504).

Almost surely, 2764350140 is an apocalyptic number.

It is an amenable number.

764350140 is an abundant number, since it is smaller than the sum of its proper divisors (1378682052).

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

764350140 is a wasteful number, since it uses less digits than its factorization.

764350140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16986 (or 16984 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 764350140 is about 27646.8830069503. The cubic root of 764350140 is about 914.3183791576.

The spelling of 764350140 in words is "seven hundred sixty-four million, three hundred fifty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 787 1574 2361 3148 3935 4722 7870 9444 11805 15740 16187 23610 32374 47220 48561 64748 80935 97122 161870 194244 242805 323740 485610 971220 12739169 25478338 38217507 50956676 63695845 76435014 127391690 152870028 191087535 254783380 382175070 764350140