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65253412 = 22717137087
BaseRepresentation
bin1111100011101…
…1000000100100
311112210012212001
43320323000210
5113201102122
610250335044
71421434120
oct370730044
9145705761
1065253412
1133919944
1219a2a484
13106991b3
148948580
155ade527
hex3e3b024

65253412 has 24 divisors (see below), whose sum is σ = 138184704. Its totient is φ = 26320512.

The previous prime is 65253379. The next prime is 65253421. The reversal of 65253412 is 21435256.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68068 + ... + 69019.

It is an arithmetic number, because the mean of its divisors is an integer number (5757696).

Almost surely, 265253412 is an apocalyptic number.

It is an amenable number.

65253412 is an abundant number, since it is smaller than the sum of its proper divisors (72931292).

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

65253412 is a wasteful number, since it uses less digits than its factorization.

65253412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137115 (or 137113 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 65253412 is about 8077.9584054388. The cubic root of 65253412 is about 402.5944111953.

Adding to 65253412 its reverse (21435256), we get a palindrome (86688668).

The spelling of 65253412 in words is "sixty-five million, two hundred fifty-three thousand, four hundred twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 137087 274174 548348 959609 1919218 2330479 3838436 4660958 9321916 16313353 32626706 65253412