Search a number
-
+
620962620432 = 2437113110750651
BaseRepresentation
bin10010000100101000100…
…00011010010000010000
32012100210221201111201120
421002110100122100100
540133212412323212
61153133304002240
762602014120330
oct11022420322020
92170727644646
10620962620432
1121a3922355a0
12a041b160380
13467308b541b
14220aa3470c0
151124538488c
hex909441a410

620962620432 has 320 divisors, whose sum is σ = 2083834626048. Its totient is φ = 154624320000.

The previous prime is 620962620373. The next prime is 620962620497. The reversal of 620962620432 is 234026269026.

It is a happy number.

It is a super-2 number, since 2×6209626204322 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12234307 + ... + 12284957.

Almost surely, 2620962620432 is an apocalyptic number.

620962620432 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620962620432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041917313024).

620962620432 is an abundant number, since it is smaller than the sum of its proper divisors (1462872005616).

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

620962620432 is a wasteful number, since it uses less digits than its factorization.

620962620432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50818 (or 50812 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

Adding to 620962620432 its reverse (234026269026), we get a palindrome (854988889458).

The spelling of 620962620432 in words is "six hundred twenty billion, nine hundred sixty-two million, six hundred twenty thousand, four hundred thirty-two".