Search a number
-
+
70415997664 = 253759472971
BaseRepresentation
bin100000110010100011…
…1101101101011100000
320201202102010022101111
41001211013231223200
52123202443411124
652203151113104
75041655050555
oct1014507555340
9221672108344
1070415997664
1127954aa42a1
1211792212794
13684269a70c
14359dd82a2c
151c71dd4494
hex10651edae0

70415997664 has 24 divisors (see below), whose sum is σ = 142378294968. Its totient is φ = 34256430720.

The previous prime is 70415997649. The next prime is 70415997667. The reversal of 70415997664 is 46679951407.

It is a junction number, because it is equal to n+sod(n) for n = 70415997599 and 70415997608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70415997667) 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 3 ways as a sum of consecutive naturals, for example, 29735302 + ... + 29737669.

It is an arithmetic number, because the mean of its divisors is an integer number (5932428957).

Almost surely, 270415997664 is an apocalyptic number.

70415997664 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

70415997664 is an abundant number, since it is smaller than the sum of its proper divisors (71962297304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70415997664 is a wasteful number, since it uses less digits than its factorization.

70415997664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59473018 (or 59473010 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 70415997664 in words is "seventy billion, four hundred fifteen million, nine hundred ninety-seven thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 59472971 118945942 237891884 475783768 951567536 1903135072 2200499927 4400999854 8801999708 17603999416 35207998832 70415997664