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61061135 = 519761991
BaseRepresentation
bin1110100011101…
…1100000001111
311020220020010112
43220323200033
5111112424020
610020430235
71341003542
oct350734017
9136806115
1061061135
1131516153
121854837b
13c85bc65
148176859
1555622c5
hex3a3b80f

61061135 has 8 divisors (see below), whose sum is σ = 73646496. Its totient is φ = 48600160.

The previous prime is 61061129. The next prime is 61061149. The reversal of 61061135 is 53116016.

It is a happy number.

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

It is not a de Polignac number, because 61061135 - 26 = 61061071 is a prime.

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 61061135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30011 + ... + 31980.

It is an arithmetic number, because the mean of its divisors is an integer number (9205812).

Almost surely, 261061135 is an apocalyptic number.

61061135 is a deficient number, since it is larger than the sum of its proper divisors (12585361).

61061135 is a wasteful number, since it uses less digits than its factorization.

61061135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62193.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 61061135 is about 7814.1624631178. The cubic root of 61061135 is about 393.7811813721.

The spelling of 61061135 in words is "sixty-one million, sixty-one thousand, one hundred thirty-five".

Divisors: 1 5 197 985 61991 309955 12212227 61061135