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253731144461 = 2971123230279
BaseRepresentation
bin1110110001001110001…
…1100000001100001101
3220020220221220122002212
43230103203200030031
513124120133110321
6312321255000205
724221460066644
oct3542343401415
9806827818085
10253731144461
1198674686313
1241212069065
131ac08098692
14c3d017c35b
15690068355b
hex3b138e030d

253731144461 has 8 divisors (see below), whose sum is σ = 266177404800. Its totient is φ = 241531344880.

The previous prime is 253731144451. The next prime is 253731144467. The reversal of 253731144461 is 164441137352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-253731144461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253731144467) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 61613081 + ... + 61617198.

It is an arithmetic number, because the mean of its divisors is an integer number (33272175600).

Almost surely, 2253731144461 is an apocalyptic number.

It is an amenable number.

253731144461 is a deficient number, since it is larger than the sum of its proper divisors (12446260339).

253731144461 is a wasteful number, since it uses less digits than its factorization.

253731144461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123230379.

The product of its digits is 241920, while the sum is 41.

The spelling of 253731144461 in words is "two hundred fifty-three billion, seven hundred thirty-one million, one hundred forty-four thousand, four hundred sixty-one".

Divisors: 1 29 71 2059 123230279 3573678091 8749349809 253731144461