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622980869 = 7160755381
BaseRepresentation
bin100101001000011…
…110111100000101
31121102020201002112
4211020132330011
52233440341434
6141452350405
721303151520
oct4510367405
91542221075
10622980869
1129a724825
12154775405
139c0b3a44
145ca49bb7
1539a5bdce
hex2521ef05

622980869 has 8 divisors (see below), whose sum is σ = 712434048. Its totient is φ = 533641680.

The previous prime is 622980863. The next prime is 622980887. The reversal of 622980869 is 968089226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-622980869 is a prime.

It is a super-2 number, since 2×6229808692 = 776210326279990322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622980863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16442 + ... + 38939.

It is an arithmetic number, because the mean of its divisors is an integer number (89054256).

Almost surely, 2622980869 is an apocalyptic number.

It is an amenable number.

622980869 is a deficient number, since it is larger than the sum of its proper divisors (89453179).

622980869 is a wasteful number, since it uses less digits than its factorization.

622980869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56995.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 622980869 is about 24959.5847120901. The cubic root of 622980869 is about 854.0662692845.

The spelling of 622980869 in words is "six hundred twenty-two million, nine hundred eighty thousand, eight hundred sixty-nine".

Divisors: 1 7 1607 11249 55381 387667 88997267 622980869