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61495233087 = 3233268932717
BaseRepresentation
bin111001010001011001…
…101100101000111111
312212201201010111221110
4321101121230220333
52001420234424322
644130040133103
74304623566561
oct712131545077
9185651114843
1061495233087
1124097501892
12bb02767193
135a504707b2
142d952b5331
1518edb59c0c
hexe5166ca3f

61495233087 has 16 divisors (see below), whose sum is σ = 82378689120. Its totient is φ = 40804442112.

The previous prime is 61495233031. The next prime is 61495233113. The reversal of 61495233087 is 78033259416.

It is not a de Polignac number, because 61495233087 - 27 = 61495232959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61495233187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1863253 + ... + 1895969.

It is an arithmetic number, because the mean of its divisors is an integer number (5148668070).

It is a 1-persistent number, because it is pandigital, but 2⋅61495233087 = 122990466174 is not.

Almost surely, 261495233087 is an apocalyptic number.

61495233087 is a deficient number, since it is larger than the sum of its proper divisors (20883456033).

61495233087 is a wasteful number, since it uses less digits than its factorization.

61495233087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35642.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 61495233087 in words is "sixty-one billion, four hundred ninety-five million, two hundred thirty-three thousand, eighty-seven".

Divisors: 1 3 233 699 2689 8067 32717 98151 626537 1879611 7623061 22869183 87976013 263928039 20498411029 61495233087