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70448148 = 22323752889
BaseRepresentation
bin1000011001011…
…11010000010100
311220120010200200
410030233100110
5121013320043
610553540500
71513541121
oct414572024
9156503620
1070448148
1136847811
121b714730
13117977c4
1494db748
1562b87d3
hex432f414

70448148 has 36 divisors (see below), whose sum is σ = 182893620. Its totient is φ = 22847616.

The previous prime is 70448129. The next prime is 70448167. The reversal of 70448148 is 84184407.

It is a happy number.

70448148 is a `hidden beast` number, since 70 + 448 + 148 = 666.

It is an interprime number because it is at equal distance from previous prime (70448129) and next prime (70448167).

It can be written as a sum of positive squares in 2 ways, for example, as 56520324 + 13927824 = 7518^2 + 3732^2 .

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

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25113 + ... + 27776.

Almost surely, 270448148 is an apocalyptic number.

It is an amenable number.

70448148 is an abundant number, since it is smaller than the sum of its proper divisors (112445472).

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

70448148 is a wasteful number, since it uses less digits than its factorization.

70448148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52936 (or 52931 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 70448148 is about 8393.3395022482. The cubic root of 70448148 is about 413.0061577290.

The spelling of 70448148 in words is "seventy million, four hundred forty-eight thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 52889 105778 158667 211556 317334 476001 634668 952002 1904004 1956893 3913786 5870679 7827572 11741358 17612037 23482716 35224074 70448148