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61430633 = 1113940177
BaseRepresentation
bin1110101001010…
…1101101101001
311021120222222122
43222111231221
5111211240013
610032401025
71344103025
oct352255551
9137528878
1061430633
1131748820
12186a6175
13c95b1b4
148231385
1555d6a08
hex3a95b69

61430633 has 8 divisors (see below), whose sum is σ = 67499040. Its totient is φ = 55442880.

The previous prime is 61430627. The next prime is 61430647. The reversal of 61430633 is 33603416.

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 61430633 - 210 = 61429609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61430653) 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, 18560 + ... + 21617.

It is an arithmetic number, because the mean of its divisors is an integer number (8437380).

Almost surely, 261430633 is an apocalyptic number.

It is an amenable number.

61430633 is a deficient number, since it is larger than the sum of its proper divisors (6068407).

61430633 is a wasteful number, since it uses less digits than its factorization.

61430633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40327.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 61430633 is about 7837.7696444843. The cubic root of 61430633 is about 394.5738779149.

The spelling of 61430633 in words is "sixty-one million, four hundred thirty thousand, six hundred thirty-three".

Divisors: 1 11 139 1529 40177 441947 5584603 61430633