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125540653 = 7145312343
BaseRepresentation
bin1110111101110…
…01100100101101
322202020010101211
413132321210231
5224114300103
620242434421
73053035510
oct736714455
9282203354
10125540653
1164956607
1236062a11
1320016b14
141295cd77
15b04c36d
hex77b992d

125540653 has 8 divisors (see below), whose sum is σ = 143585408. Its totient is φ = 107523504.

The previous prime is 125540651. The next prime is 125540659. The reversal of 125540653 is 356045521.

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

It is a cyclic number.

It is not a de Polignac number, because 125540653 - 21 = 125540651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125540651) 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, 4000 + ... + 16342.

It is an arithmetic number, because the mean of its divisors is an integer number (17948176).

Almost surely, 2125540653 is an apocalyptic number.

It is an amenable number.

125540653 is a deficient number, since it is larger than the sum of its proper divisors (18044755).

125540653 is a wasteful number, since it uses less digits than its factorization.

125540653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13803.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 125540653 is about 11204.4925364784. The cubic root of 125540653 is about 500.7198338478.

The spelling of 125540653 in words is "one hundred twenty-five million, five hundred forty thousand, six hundred fifty-three".

Divisors: 1 7 1453 10171 12343 86401 17934379 125540653