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248993379 = 3371129887
BaseRepresentation
bin11101101011101…
…01011001100011
3122100112011201000
432311311121203
51002220242004
640412443043
76112260135
oct1665653143
9570464630
10248993379
11118606458
126b479483
133c77c47b
14250d7055
1516cd5c39
hexed75663

248993379 has 16 divisors (see below), whose sum is σ = 374077440. Its totient is φ = 163656360.

The previous prime is 248993363. The next prime is 248993383. The reversal of 248993379 is 973399842.

248993379 is a `hidden beast` number, since 2 + 489 + 93 + 3 + 79 = 666.

It is not a de Polignac number, because 248993379 - 24 = 248993363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248493379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63027 + ... + 66860.

It is an arithmetic number, because the mean of its divisors is an integer number (23379840).

Almost surely, 2248993379 is an apocalyptic number.

248993379 is a deficient number, since it is larger than the sum of its proper divisors (125084061).

248993379 is a wasteful number, since it uses less digits than its factorization.

248993379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129967 (or 129961 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 248993379 is about 15779.5240422517. The cubic root of 248993379 is about 629.1138789350.

The spelling of 248993379 in words is "two hundred forty-eight million, nine hundred ninety-three thousand, three hundred seventy-nine".

Divisors: 1 3 9 27 71 213 639 1917 129887 389661 1168983 3506949 9221977 27665931 82997793 248993379