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61652141421 = 3131580824139
BaseRepresentation
bin111001011010110000…
…010000010101101101
312220010122101021201020
4321122300100111231
52002230422011141
644153403204353
74311540361353
oct713260202555
9186118337636
1061652141421
11241680323a2
12bb472166b9
135a76b1ac70
142dac07b7d3
15190c801266
hexe5ac1056d

61652141421 has 8 divisors (see below), whose sum is σ = 88526151840. Its totient is φ = 37939779312.

The previous prime is 61652141381. The next prime is 61652141429. The reversal of 61652141421 is 12414125616.

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

It is not a de Polignac number, because 61652141421 - 26 = 61652141357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61652141429) 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, 790412031 + ... + 790412108.

It is an arithmetic number, because the mean of its divisors is an integer number (11065768980).

Almost surely, 261652141421 is an apocalyptic number.

It is an amenable number.

61652141421 is a deficient number, since it is larger than the sum of its proper divisors (26874010419).

61652141421 is a wasteful number, since it uses less digits than its factorization.

61652141421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580824155.

The product of its digits is 11520, while the sum is 33.

The spelling of 61652141421 in words is "sixty-one billion, six hundred fifty-two million, one hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 3 13 39 1580824139 4742472417 20550713807 61652141421