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621374324 = 22155343581
BaseRepresentation
bin100101000010010…
…110101101110100
31121022020002022212
4211002112231310
52233032434244
6141354112552
721253410644
oct4502265564
91538202285
10621374324
112998277aa
1215411b758
139b97071c
145c74c524
1539840d9e
hex25096b74

621374324 has 6 divisors (see below), whose sum is σ = 1087405074. Its totient is φ = 310687160.

The previous prime is 621374317. The next prime is 621374339. The reversal of 621374324 is 423473126.

It can be written as a sum of positive squares in only one way, i.e., 345216400 + 276157924 = 18580^2 + 16618^2 .

It is a super-2 number, since 2×6213743242 = 772212101052913952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77671787 + ... + 77671794.

It is an arithmetic number, because the mean of its divisors is an integer number (181234179).

Almost surely, 2621374324 is an apocalyptic number.

It is an amenable number.

621374324 is a deficient number, since it is larger than the sum of its proper divisors (466030750).

621374324 is a wasteful number, since it uses less digits than its factorization.

621374324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155343585 (or 155343583 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 621374324 is about 24927.3810096448. The cubic root of 621374324 is about 853.3314810480.

The spelling of 621374324 in words is "six hundred twenty-one million, three hundred seventy-four thousand, three hundred twenty-four".

Divisors: 1 2 4 155343581 310687162 621374324