Search a number
-
+
76430770430 = 25712785310079
BaseRepresentation
bin100011100101110100…
…0010000000011111110
321022021120222102111012
41013023220100003332
52223012234123210
655040052355222
75344011554330
oct1071350200376
9238246872435
1076430770430
112a4611a5083
1212990615b12
137290839561
1439b0b19450
151ec4e89305
hex11cba100fe

76430770430 has 64 divisors (see below), whose sum is σ = 158668554240. Its totient is φ = 25965442944.

The previous prime is 76430770421. The next prime is 76430770447. The reversal of 76430770430 is 3407703467.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7578131 + ... + 7588209.

It is an arithmetic number, because the mean of its divisors is an integer number (2479196160).

Almost surely, 276430770430 is an apocalyptic number.

76430770430 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

76430770430 is an abundant number, since it is smaller than the sum of its proper divisors (82237783810).

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

76430770430 is a wasteful number, since it uses less digits than its factorization.

76430770430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11073.

The product of its (nonzero) digits is 296352, while the sum is 41.

The spelling of 76430770430 in words is "seventy-six billion, four hundred thirty million, seven hundred seventy thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 127 254 635 853 889 1270 1706 1778 4265 4445 5971 8530 8890 10079 11942 20158 29855 50395 59710 70553 100790 108331 141106 216662 352765 541655 705530 758317 1083310 1280033 1516634 2560066 3791585 6400165 7583170 8597387 8960231 12800330 17194774 17920462 42986935 44801155 60181709 85973870 89602310 120363418 300908545 601817090 1091868149 2183736298 5459340745 7643077043 10918681490 15286154086 38215385215 76430770430