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620074741 = 1113311371021
BaseRepresentation
bin100100111101011…
…001011011110101
31121012210001122011
4210331121123311
52232214342431
6141310204221
721236356036
oct4475313365
91535701564
10620074741
1129901a370
121537b3671
139b607040
145c4d0a8d
1539685cb1
hex24f596f5

620074741 has 32 divisors (see below), whose sum is σ = 758209536. Its totient is φ = 499392000.

The previous prime is 620074703. The next prime is 620074751. The reversal of 620074741 is 147470026.

It is a cyclic number.

It is not a de Polignac number, because 620074741 - 29 = 620074229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620074751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606811 + ... + 607831.

It is an arithmetic number, because the mean of its divisors is an integer number (23694048).

Almost surely, 2620074741 is an apocalyptic number.

It is an amenable number.

620074741 is a deficient number, since it is larger than the sum of its proper divisors (138134795).

620074741 is a wasteful number, since it uses less digits than its factorization.

620074741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 620074741 is about 24901.2999861453. The cubic root of 620074741 is about 852.7361613560.

The spelling of 620074741 in words is "six hundred twenty million, seventy-four thousand, seven hundred forty-one".

Divisors: 1 11 13 31 137 143 341 403 1021 1507 1781 4247 4433 11231 13273 19591 31651 46717 55211 139877 146003 348161 411463 607321 1538647 1818401 4336187 4526093 20002411 47698057 56370431 620074741