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1848140244 = 2232173019837
BaseRepresentation
bin110111000101000…
…0110000111010100
311202210121020210200
41232022012013110
512241110441434
6503220020500
763540634656
oct15612060724
94683536720
101848140244
11869255135
12436b31730
13235b76b12
141376486d6
15ac3b7199
hex6e2861d4

1848140244 has 36 divisors (see below), whose sum is σ = 4946494644. Its totient is φ = 579808512.

The previous prime is 1848140243. The next prime is 1848140291. The reversal of 1848140244 is 4420418481.

It can be written as a sum of positive squares in 2 ways, for example, as 1439291844 + 408848400 = 37938^2 + 20220^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18481402442 = 6831244722984759072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1848140199 and 1848140208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1848140243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1509307 + ... + 1510530.

It is an arithmetic number, because the mean of its divisors is an integer number (137402629).

Almost surely, 21848140244 is an apocalyptic number.

It is an amenable number.

1848140244 is an abundant number, since it is smaller than the sum of its proper divisors (3098354400).

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

1848140244 is a wasteful number, since it uses less digits than its factorization.

1848140244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019864 (or 3019859 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 1848140244 is about 42990.0016748081. The cubic root of 1848140244 is about 1227.1895300070.

The spelling of 1848140244 in words is "one billion, eight hundred forty-eight million, one hundred forty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 3019837 6039674 9059511 12079348 18119022 27178533 36238044 51337229 54357066 102674458 108714132 154011687 205348916 308023374 462035061 616046748 924070122 1848140244