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1384572672 = 283272932
BaseRepresentation
bin101001010000110…
…1110011100000000
310120111022120122100
41102201232130000
510313422311142
6345220110400
746211450010
oct12241563400
93514276570
101384572672
11650611a3a
12327835400
13190b09792
14d1c57c40
1581848b4c
hex5286e700

1384572672 has 162 divisors, whose sum is σ = 4577983592. Its totient is φ = 394242048.

The previous prime is 1384572661. The next prime is 1384572691. The reversal of 1384572672 is 2762754831.

1384572672 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 572 + 6 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4725358 + ... + 4725650.

Almost surely, 21384572672 is an apocalyptic number.

1384572672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384572672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288991796).

1384572672 is an abundant number, since it is smaller than the sum of its proper divisors (3193410920).

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

1384572672 is an frugal number, since it uses more digits than its factorization.

1384572672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 305 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 1384572672 is about 37209.8464388124. The cubic root of 1384572672 is about 1114.5646170269.

It can be divided in two parts, 1384 and 572672, that added together give a triangular number (574056 = T1071).

The spelling of 1384572672 in words is "one billion, three hundred eighty-four million, five hundred seventy-two thousand, six hundred seventy-two".