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120442525 = 5273112213
BaseRepresentation
bin1110010110111…
…00111010011101
322101122010002021
413023130322131
5221313130100
615541300141
72661513250
oct713347235
9271563067
10120442525
1161a94285
1234404651
131bc50488
1411dd3097
15a891a1a
hex72dce9d

120442525 has 24 divisors (see below), whose sum is σ = 171310464. Its totient is φ = 82286400.

The previous prime is 120442489. The next prime is 120442537. The reversal of 120442525 is 525244021.

It is not a de Polignac number, because 120442525 - 213 = 120434333 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120442525.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 53319 + ... + 55531.

It is an arithmetic number, because the mean of its divisors is an integer number (7137936).

Almost surely, 2120442525 is an apocalyptic number.

It is an amenable number.

120442525 is a deficient number, since it is larger than the sum of its proper divisors (50867939).

120442525 is a wasteful number, since it uses less digits than its factorization.

120442525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541 (or 2536 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 120442525 is about 10974.6309732947. The cubic root of 120442525 is about 493.8479824773.

Adding to 120442525 its reverse (525244021), we get a palindrome (645686546).

The spelling of 120442525 in words is "one hundred twenty million, four hundred forty-two thousand, five hundred twenty-five".

Divisors: 1 5 7 25 35 175 311 1555 2177 2213 7775 10885 11065 15491 54425 55325 77455 387275 688243 3441215 4817701 17206075 24088505 120442525