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690277412 = 221122336121
BaseRepresentation
bin101001001001001…
…100110000100100
31210002212201121002
4221021030300210
52403202334122
6152255012432
723051155406
oct5111146044
91702781532
10690277412
11324709700
1217320a118
13b0016b96
1467966b76
1540901992
hex2924cc24

690277412 has 36 divisors (see below), whose sum is σ = 1333702188. Its totient is φ = 312364800.

The previous prime is 690277411. The next prime is 690277421. The reversal of 690277412 is 214772096.

It can be written as a sum of positive squares in 2 ways, for example, as 107827456 + 582449956 = 10384^2 + 24134^2 .

It is not an unprimeable number, because it can be changed into a prime (690277411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109712 + ... + 115832.

It is an arithmetic number, because the mean of its divisors is an integer number (37047283).

Almost surely, 2690277412 is an apocalyptic number.

It is an amenable number.

690277412 is a deficient number, since it is larger than the sum of its proper divisors (643424776).

690277412 is a wasteful number, since it uses less digits than its factorization.

690277412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380 (or 6367 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 690277412 is about 26273.1309896632. The cubic root of 690277412 is about 883.7739998831.

The spelling of 690277412 in words is "six hundred ninety million, two hundred seventy-seven thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 121 233 242 466 484 932 2563 5126 6121 10252 12242 24484 28193 56386 67331 112772 134662 269324 740641 1426193 1481282 2852386 2962564 5704772 15688123 31376246 62752492 172569353 345138706 690277412