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6900749325 = 325230669997
BaseRepresentation
bin1100110110101000…
…10001010000001101
3122210220222101110100
412123110101100031
5103113042434300
63100431001313
7333002254461
oct63324212015
918726871410
106900749325
112a21325118
121407069239
1385c895532
144966c24a1
152a5c61700
hex19b51140d

6900749325 has 18 divisors (see below), whose sum is σ = 12360009194. Its totient is φ = 3680399520.

The previous prime is 6900749311. The next prime is 6900749333. The reversal of 6900749325 is 5239470096.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 35964009 + 6864785316 = 5997^2 + 82854^2 .

It is not a de Polignac number, because 6900749325 - 211 = 6900747277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15334774 + ... + 15335223.

Almost surely, 26900749325 is an apocalyptic number.

It is an amenable number.

6900749325 is a deficient number, since it is larger than the sum of its proper divisors (5459259869).

6900749325 is a wasteful number, since it uses less digits than its factorization.

6900749325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30670013 (or 30670005 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 6900749325 is about 83070.7489132005. The cubic root of 6900749325 is about 1903.8471748623.

The spelling of 6900749325 in words is "six billion, nine hundred million, seven hundred forty-nine thousand, three hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 30669997 92009991 153349985 276029973 460049955 766749925 1380149865 2300249775 6900749325