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100231231330 = 25471129188891
BaseRepresentation
bin101110101011000111…
…1110011011101100010
3100120201021202010000001
41131112033303131202
53120233143400310
6114013503050214
710145552260216
oct1352617633542
9316637663001
10100231231330
1139564a0a67a
12175132a096a
1395b46b0309
144bcba52946
1529196b293a
hex17563f3762

100231231330 has 32 divisors (see below), whose sum is σ = 184419037440. Its totient is φ = 39204497280.

The previous prime is 100231231313. The next prime is 100231231333. The reversal of 100231231330 is 33132132001.

It is a junction number, because it is equal to n+sod(n) for n = 100231231298 and 100231231307.

It is not an unprimeable number, because it can be changed into a prime (100231231333) 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, 436185 + ... + 625075.

It is an arithmetic number, because the mean of its divisors is an integer number (5763094920).

Almost surely, 2100231231330 is an apocalyptic number.

100231231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100231231330 is a deficient number, since it is larger than the sum of its proper divisors (84187806110).

100231231330 is a wasteful number, since it uses less digits than its factorization.

100231231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190074.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 100231231330 its reverse (33132132001), we get a palindrome (133363363331).

It can be divided in two parts, 100231231 and 330, that added together give a triangular number (100231561 = T14158).

The spelling of 100231231330 in words is "one hundred billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 1129 2258 5645 11290 53063 106126 188891 265315 377782 530630 944455 1888910 8877877 17755754 44389385 88778770 213257939 426515878 1066289695 2132579390 10023123133 20046246266 50115615665 100231231330