Search a number
-
+
31020013310330 = 2511282000121003
BaseRepresentation
bin1110000110110011010001…
…10111111101000101111010
311001211111002001200200120002
413003121220313331011322
513031212441401412310
6145550221500233002
76351056563436612
oct703315067750572
9131744061620502
1031020013310330
11997a571907240
12358ba7783b762
131440236a92c45
1479353b781a42
1538bd7d539da5
hex1c3668dfd17a

31020013310330 has 16 divisors (see below), whose sum is σ = 60912026136864. Its totient is φ = 11280004840080.

The previous prime is 31020013310311. The next prime is 31020013310381. The reversal of 31020013310330 is 3301331002013.

It is a Curzon 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, 141000060392 + ... + 141000060611.

It is an arithmetic number, because the mean of its divisors is an integer number (3807001633554).

Almost surely, 231020013310330 is an apocalyptic number.

31020013310330 is a deficient number, since it is larger than the sum of its proper divisors (29892012826534).

31020013310330 is a wasteful number, since it uses less digits than its factorization.

31020013310330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282000121021.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31020013310330 its reverse (3301331002013), we get a palindrome (34321344312343).

The spelling of 31020013310330 in words is "thirty-one trillion, twenty billion, thirteen million, three hundred ten thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 282000121003 564000242006 1410000605015 2820001210030 3102001331033 6204002662066 15510006655165 31020013310330