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61450714553 = 2916271302391
BaseRepresentation
bin111001001110101111…
…110111110110111001
312212121121100201222212
4321032233313312321
52001322340331203
644121410024505
74303543312124
oct711657676671
9185547321885
1061450714553
1124074365408
12baab878135
135a44184377
142d8d4073bb
1518e9cb41d8
hexe4ebf7db9

61450714553 has 8 divisors (see below), whose sum is σ = 63608825280. Its totient is φ = 59295211920.

The previous prime is 61450714471. The next prime is 61450714571. The reversal of 61450714553 is 35541705416.

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 61450714553 - 210 = 61450713529 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 61450714553.

It is not an unprimeable number, because it can be changed into a prime (61450714573) 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, 604013 + ... + 698378.

It is an arithmetic number, because the mean of its divisors is an integer number (7951103160).

Almost surely, 261450714553 is an apocalyptic number.

It is an amenable number.

61450714553 is a deficient number, since it is larger than the sum of its proper divisors (2158110727).

61450714553 is a wasteful number, since it uses less digits than its factorization.

61450714553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304047.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 61450714553 in words is "sixty-one billion, four hundred fifty million, seven hundred fourteen thousand, five hundred fifty-three".

Divisors: 1 29 1627 47183 1302391 37769339 2118990157 61450714553