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381429948 = 22331785829
BaseRepresentation
bin10110101111000…
…010100010111100
3222120201122112010
4112233002202330
51240121224243
6101503211220
712311046444
oct2657024274
9876648463
10381429948
11186341a69
12a78a6b10
136103bcc3
143892d124
1523746433
hex16bc28bc

381429948 has 12 divisors (see below), whose sum is σ = 890003240. Its totient is φ = 127143312.

The previous prime is 381429931. The next prime is 381429973. The reversal of 381429948 is 849924183.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 381429897 and 381429906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15892903 + ... + 15892926.

Almost surely, 2381429948 is an apocalyptic number.

It is an amenable number.

381429948 is an abundant number, since it is smaller than the sum of its proper divisors (508573292).

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

381429948 is a wasteful number, since it uses less digits than its factorization.

381429948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31785836 (or 31785834 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 381429948 is about 19530.2316422515. The cubic root of 381429948 is about 725.2230454438.

The spelling of 381429948 in words is "three hundred eighty-one million, four hundred twenty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 31785829 63571658 95357487 127143316 190714974 381429948