Search a number
-
+
31102101331010 = 2547456714489749
BaseRepresentation
bin1110001001001100001011…
…01100111001110001000010
311002010022221220210012110022
413010212011230321301002
513034034100420043020
6150052035203333442
76360024031213223
oct704460554716102
9132108856705408
1031102101331010
119a0136640a146
1235a3966981282
131447bb9680148
147974c796924a
1538e084ea6625
hex1c4985b39c42

31102101331010 has 32 divisors (see below), whose sum is σ = 57187449792000. Its totient is φ = 12173474843712.

The previous prime is 31102101330983. The next prime is 31102101331019. The reversal of 31102101331010 is 1013310120113.

It is a self number, because there is not a number n which added to its sum of digits gives 31102101331010.

It is not an unprimeable number, because it can be changed into a prime (31102101331019) 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, 5098385 + ... + 9391364.

It is an arithmetic number, because the mean of its divisors is an integer number (1787107806000).

Almost surely, 231102101331010 is an apocalyptic number.

31102101331010 is a deficient number, since it is larger than the sum of its proper divisors (26085348460990).

31102101331010 is a wasteful number, since it uses less digits than its factorization.

31102101331010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14494370.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31102101331010 its reverse (1013310120113), we get a palindrome (32115411451123).

The spelling of 31102101331010 in words is "thirty-one trillion, one hundred two billion, one hundred one million, three hundred thirty-one thousand, ten".

Divisors: 1 2 5 10 47 94 235 470 4567 9134 22835 45670 214649 429298 1073245 2146490 14489749 28979498 72448745 144897490 681018203 1362036406 3405091015 6810182030 66174683683 132349367366 330873418415 661746836830 3110210133101 6220420266202 15551050665505 31102101331010