Search a number
-
+
630262887808 = 2712738771093
BaseRepresentation
bin10010010101111101001…
…10000111010110000000
32020020211002211001010211
421022332212013112000
540311234244402213
61201312213003504
763351334103431
oct11127646072600
92206732731124
10630262887808
11223324a73084
12a2195923594
1347583628108
142270d5a1488
15115dbac453d
hex92be987580

630262887808 has 32 divisors (see below), whose sum is σ = 1265488508160. Its totient is φ = 312650085888.

The previous prime is 630262887799. The next prime is 630262887817. The reversal of 630262887808 is 808788262036.

It is an interprime number because it is at equal distance from previous prime (630262887799) and next prime (630262887817).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19369291 + ... + 19401802.

It is an arithmetic number, because the mean of its divisors is an integer number (39546515880).

Almost surely, 2630262887808 is an apocalyptic number.

It is an amenable number.

630262887808 is an abundant number, since it is smaller than the sum of its proper divisors (635225620352).

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

630262887808 is a wasteful number, since it uses less digits than its factorization.

630262887808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38771234 (or 38771222 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 630262887808 in words is "six hundred thirty billion, two hundred sixty-two million, eight hundred eighty-seven thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 64 127 128 254 508 1016 2032 4064 8128 16256 38771093 77542186 155084372 310168744 620337488 1240674976 2481349952 4923928811 4962699904 9847857622 19695715244 39391430488 78782860976 157565721952 315131443904 630262887808