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253985148 = 22327055143
BaseRepresentation
bin11110010001110…
…00000101111100
3122200220210010100
433020320011330
51010010011043
641111441100
76202560324
oct1710700574
9580823110
10253985148
1112040588a
1271086190
1340809591
1425a36284
151746ecd3
hexf23817c

253985148 has 18 divisors (see below), whose sum is σ = 642018104. Its totient is φ = 84661704.

The previous prime is 253985129. The next prime is 253985153. The reversal of 253985148 is 841589352.

253985148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3527536 + ... + 3527607.

Almost surely, 2253985148 is an apocalyptic number.

It is an amenable number.

253985148 is an abundant number, since it is smaller than the sum of its proper divisors (388032956).

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

253985148 is a wasteful number, since it uses less digits than its factorization.

253985148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7055153 (or 7055148 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 253985148 is about 15936.9114950168. The cubic root of 253985148 is about 633.2902093137.

The spelling of 253985148 in words is "two hundred fifty-three million, nine hundred eighty-five thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 7055143 14110286 21165429 28220572 42330858 63496287 84661716 126992574 253985148