Search a number
-
+
64419748354 = 21317571255247
BaseRepresentation
bin111011111111101101…
…110101101000000010
320011021112010021200201
4323333231311220002
52023412423421404
645332150435414
74440244553263
oct737755655002
9204245107621
1064419748354
11253582a5455
121059a062b6a
1360c8315bc0
14319186c96a
151a2078cca4
hexeffb75a02

64419748354 has 32 divisors (see below), whose sum is σ = 110377403136. Its totient is φ = 27934122240.

The previous prime is 64419748339. The next prime is 64419748373. The reversal of 64419748354 is 45384791446.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64419748295 and 64419748304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124759 + ... + 380005.

It is an arithmetic number, because the mean of its divisors is an integer number (3449293848).

Almost surely, 264419748354 is an apocalyptic number.

64419748354 is a deficient number, since it is larger than the sum of its proper divisors (45957654782).

64419748354 is a wasteful number, since it uses less digits than its factorization.

64419748354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255850.

The product of its digits is 11612160, while the sum is 55.

The spelling of 64419748354 in words is "sixty-four billion, four hundred nineteen million, seven hundred forty-eight thousand, three hundred fifty-four".

Divisors: 1 2 13 17 26 34 221 442 571 1142 7423 9707 14846 19414 126191 252382 255247 510494 3318211 4339199 6636422 8678398 56409587 112819174 145746037 291492074 1894698481 2477682629 3789396962 4955365258 32209874177 64419748354