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61001433 = 3215144887
BaseRepresentation
bin1110100010110…
…0111011011001
311020210012020100
43220230323121
5111104021213
610015250013
71340334513
oct350547331
9136705210
1061001433
1131485309
1218519909
13c83aa2c
14815cbb3
15554e773
hex3a2ced9

61001433 has 12 divisors (see below), whose sum is σ = 88698688. Its totient is φ = 40397400.

The previous prime is 61001417. The next prime is 61001443. The reversal of 61001433 is 33410016.

It is not a de Polignac number, because 61001433 - 24 = 61001417 is a prime.

It is a super-5 number, since 5×610014335 (a number of 40 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61001443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21085 + ... + 23802.

Almost surely, 261001433 is an apocalyptic number.

It is an amenable number.

61001433 is a deficient number, since it is larger than the sum of its proper divisors (27697255).

61001433 is a wasteful number, since it uses less digits than its factorization.

61001433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45044 (or 45041 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 61001433 is about 7810.3414137924. The cubic root of 61001433 is about 393.6528008000.

Adding to 61001433 its reverse (33410016), we get a palindrome (94411449).

The spelling of 61001433 in words is "sixty-one million, one thousand, four hundred thirty-three".

Divisors: 1 3 9 151 453 1359 44887 134661 403983 6777937 20333811 61001433