Search a number
-
+
748913890717 = 611011021119057
BaseRepresentation
bin10101110010111101011…
…11110001010110011101
32122121002002121111112001
422321132233301112131
544232233424000332
61332013555442301
7105051533015626
oct12713657612635
92577062544461
10748913890717
11269681404773
121011898b6391
13558121b0745
14283676b0a4d
151473340c0e7
hexae5ebf159d

748913890717 has 16 divisors (see below), whose sum is σ = 769487093424. Its totient is φ = 728622720000.

The previous prime is 748913890649. The next prime is 748913890723. The reversal of 748913890717 is 717098319847.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10515682116 + 738398208601 = 102546^2 + 859301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-748913890717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748916890717) 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, 6230853 + ... + 6349909.

It is an arithmetic number, because the mean of its divisors is an integer number (48092943339).

Almost surely, 2748913890717 is an apocalyptic number.

It is an amenable number.

748913890717 is a deficient number, since it is larger than the sum of its proper divisors (20573202707).

748913890717 is a wasteful number, since it uses less digits than its factorization.

748913890717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120240.

The product of its (nonzero) digits is 21337344, while the sum is 64.

The spelling of 748913890717 in words is "seven hundred forty-eight billion, nine hundred thirteen million, eight hundred ninety thousand, seven hundred seventeen".

Divisors: 1 61 101 1021 6161 62281 103121 119057 6290381 7262477 12024757 121557197 733510177 7414989017 12277276897 748913890717