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145103653 = 1731275339
BaseRepresentation
bin10001010011000…
…01101100100101
3101010001000210101
420221201230211
5244121304103
622222024101
73411234502
oct1051415445
9333030711
10145103653
11749a8582
1240718031
13240a6366
14153b24a9
15cb13a1d
hex8a61b25

145103653 has 8 divisors (see below), whose sum is σ = 158595840. Its totient is φ = 132162240.

The previous prime is 145103611. The next prime is 145103657. The reversal of 145103653 is 356301541.

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-145103653 is a prime.

It is a super-2 number, since 2×1451036532 = 42110140227888818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145103657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137143 + ... + 138196.

It is an arithmetic number, because the mean of its divisors is an integer number (19824480).

Almost surely, 2145103653 is an apocalyptic number.

It is an amenable number.

145103653 is a deficient number, since it is larger than the sum of its proper divisors (13492187).

145103653 is a wasteful number, since it uses less digits than its factorization.

145103653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275387.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 145103653 is about 12045.8977664598. The cubic root of 145103653 is about 525.4839413730.

The spelling of 145103653 in words is "one hundred forty-five million, one hundred three thousand, six hundred fifty-three".

Divisors: 1 17 31 527 275339 4680763 8535509 145103653