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13453216146 = 2321375455481
BaseRepresentation
bin11001000011101111…
…11100100110010010
31021201120121012010200
430201313330212102
5210023010404041
610102541040030
7654245310336
oct144167744622
937646535120
1013453216146
115783a98457
122735556016
131365256536
14918a237c6
1553b1281b6
hex321dfc992

13453216146 has 24 divisors (see below), whose sum is σ = 29361404124. Its totient is φ = 4451671680.

The previous prime is 13453216129. The next prime is 13453216163. The reversal of 13453216146 is 64161235431.

13453216146 is a `hidden beast` number, since 1 + 3 + 4 + 5 + 32 + 1 + 614 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (13453216129) and next prime (13453216163).

It can be written as a sum of positive squares in 2 ways, for example, as 12766514121 + 686702025 = 112989^2 + 26205^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13453216146.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2725275 + ... + 2730206.

Almost surely, 213453216146 is an apocalyptic number.

13453216146 is an abundant number, since it is smaller than the sum of its proper divisors (15908187978).

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

13453216146 is a wasteful number, since it uses less digits than its factorization.

13453216146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455626 (or 5455623 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 13453216146 in words is "thirteen billion, four hundred fifty-three million, two hundred sixteen thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 137 274 411 822 1233 2466 5455481 10910962 16366443 32732886 49099329 98198658 747400897 1494801794 2242202691 4484405382 6726608073 13453216146