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61425151 = 1572391637
BaseRepresentation
bin1110101001010…
…0010111111111
311021120201110121
43222110113333
5111211101101
610032315411
71344051034
oct352242777
9137521417
1061425151
1131744697
12186a2b67
13c958858
14822d38b
1555d50a1
hex3a945ff

61425151 has 8 divisors (see below), whose sum is σ = 62112960. Its totient is φ = 60741408.

The previous prime is 61425121. The next prime is 61425173. The reversal of 61425151 is 15152416.

It is a happy number.

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 61425151 - 213 = 61416959 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 (61425121) 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, 36705 + ... + 38341.

It is an arithmetic number, because the mean of its divisors is an integer number (7764120).

Almost surely, 261425151 is an apocalyptic number.

61425151 is a deficient number, since it is larger than the sum of its proper divisors (687809).

61425151 is a wasteful number, since it uses less digits than its factorization.

61425151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033.

The product of its digits is 1200, while the sum is 25.

The square root of 61425151 is about 7837.4199198461. The cubic root of 61425151 is about 394.5621404574.

Adding to 61425151 its reverse (15152416), we get a palindrome (76577567).

The spelling of 61425151 in words is "sixty-one million, four hundred twenty-five thousand, one hundred fifty-one".

Divisors: 1 157 239 1637 37523 257009 391243 61425151