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1311210093 = 31097398423
BaseRepresentation
bin100111000100111…
…0111101001101101
310101101021101002210
41032021313221231
510141132210333
6334035441033
744331046644
oct11611675155
93341241083
101311210093
11613164606
12307156179
1317b86157b
14c61dc35b
157a1a6a63
hex4e277a6d

1311210093 has 8 divisors (see below), whose sum is σ = 1749878208. Its totient is φ = 873341024.

The previous prime is 1311210091. The next prime is 1311210113. The reversal of 1311210093 is 3900121131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311210093 - 21 = 1311210091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311210091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195921 + ... + 202502.

It is an arithmetic number, because the mean of its divisors is an integer number (218734776).

Almost surely, 21311210093 is an apocalyptic number.

It is an amenable number.

1311210093 is a deficient number, since it is larger than the sum of its proper divisors (438668115).

1311210093 is a wasteful number, since it uses less digits than its factorization.

1311210093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399523.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1311210093 is about 36210.6350814232. The cubic root of 1311210093 is about 1094.5209897942.

The spelling of 1311210093 in words is "one billion, three hundred eleven million, two hundred ten thousand, ninety-three".

Divisors: 1 3 1097 3291 398423 1195269 437070031 1311210093