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120442534 = 2138143607
BaseRepresentation
bin1110010110111…
…00111010100110
322101122010002121
413023130322212
5221313130114
615541300154
72661513262
oct713347246
9271563077
10120442534
1161a94293
123440465a
131bc50494
1411dd30a2
15a891a24
hex72dcea6

120442534 has 8 divisors (see below), whose sum is σ = 180798768. Its totient is φ = 60176280.

The previous prime is 120442489. The next prime is 120442537. The reversal of 120442534 is 435244021.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 120442499 and 120442508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120442537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19042 + ... + 24565.

It is an arithmetic number, because the mean of its divisors is an integer number (22599846).

Almost surely, 2120442534 is an apocalyptic number.

120442534 is a deficient number, since it is larger than the sum of its proper divisors (60356234).

120442534 is a wasteful number, since it uses less digits than its factorization.

120442534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44990.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 120442534 is about 10974.6313833313. The cubic root of 120442534 is about 493.8479947781.

Adding to 120442534 its reverse (435244021), we get a palindrome (555686555).

The spelling of 120442534 in words is "one hundred twenty million, four hundred forty-two thousand, five hundred thirty-four".

Divisors: 1 2 1381 2762 43607 87214 60221267 120442534