Search a number
-
+
311641324040 = 23529251266351
BaseRepresentation
bin1001000100011110100…
…01010011101000001000
31002210101211010120011202
410202033101103220020
520101220134332130
6355055511043332
731341522355514
oct4421721235010
91083354116152
10311641324040
11110191448362
1250494070548
1323506890227
1411125275144
15818e6d0145
hex488f453a08

311641324040 has 32 divisors (see below), whose sum is σ = 701219583360. Its totient is φ = 124651800000.

The previous prime is 311641323997. The next prime is 311641324061. The reversal of 311641324040 is 40423146113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311641323994 and 311641324012.

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, 1036865 + ... + 1303215.

It is an arithmetic number, because the mean of its divisors is an integer number (21913111980).

Almost surely, 2311641324040 is an apocalyptic number.

It is an amenable number.

311641324040 is an abundant number, since it is smaller than the sum of its proper divisors (389578259320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311641324040 is a wasteful number, since it uses less digits than its factorization.

311641324040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295613 (or 295609 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 311641324040 in words is "three hundred eleven billion, six hundred forty-one million, three hundred twenty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 29251 58502 117004 146255 234008 266351 292510 532702 585020 1065404 1170040 1331755 2130808 2663510 5327020 10654040 7791033101 15582066202 31164132404 38955165505 62328264808 77910331010 155820662020 311641324040