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612058381 = 11192928509
BaseRepresentation
bin100100011110110…
…100010100001101
31120122200210020221
4210132310110031
52223141332011
6140422311341
721111260524
oct4436642415
91518623227
10612058381
11294544580
12150b88551
1399a5b32c
145b4054bb
1538b00971
hex247b450d

612058381 has 8 divisors (see below), whose sum is σ = 702842400. Its totient is φ = 527131440.

The previous prime is 612058367. The next prime is 612058387. The reversal of 612058381 is 183850216.

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

It is not a de Polignac number, because 612058381 - 225 = 578503949 is a prime.

It is a super-2 number, since 2×6120583812 = 749230923504682322, 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 (612058387) 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, 1464046 + ... + 1464463.

It is an arithmetic number, because the mean of its divisors is an integer number (87855300).

Almost surely, 2612058381 is an apocalyptic number.

It is an amenable number.

612058381 is a deficient number, since it is larger than the sum of its proper divisors (90784019).

612058381 is a wasteful number, since it uses less digits than its factorization.

612058381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928539.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 612058381 is about 24739.8136815943. The cubic root of 612058381 is about 849.0454710494.

The spelling of 612058381 in words is "six hundred twelve million, fifty-eight thousand, three hundred eighty-one".

Divisors: 1 11 19 209 2928509 32213599 55641671 612058381