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31313130330022 = 281118893217057
BaseRepresentation
bin1110001111010101010000…
…00000101001011110100110
311002212111122220002002100121
413013222220000221132212
513101013242331030042
6150333015315232154
76411204363132262
oct707525000513646
9132774586062317
1031313130330022
119a82907815562
12361883bba865a
131461a7a90b128
147a37c67090a2
153947d67e7367
hex1c7aa80297a6

31313130330022 has 16 divisors (see below), whose sum is σ = 46980985102272. Its totient is φ = 15652802430720.

The previous prime is 31313130330017. The next prime is 31313130330109. The reversal of 31313130330022 is 22003303131313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144153718 + ... + 144370774.

It is an arithmetic number, because the mean of its divisors is an integer number (2936311568892).

Almost surely, 231313130330022 is an apocalyptic number.

31313130330022 is a deficient number, since it is larger than the sum of its proper divisors (15667854772250).

31313130330022 is a wasteful number, since it uses less digits than its factorization.

31313130330022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234063.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31313130330022 its reverse (22003303131313), we get a palindrome (53316433461335).

The spelling of 31313130330022 in words is "thirty-one trillion, three hundred thirteen billion, one hundred thirty million, three hundred thirty thousand, twenty-two".

Divisors: 1 2 8111 8893 16222 17786 217057 434114 72131123 144262246 1760549327 1930287901 3521098654 3860575802 15656565165011 31313130330022