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70903152 = 2432677349
BaseRepresentation
bin1000011100111…
…10010101110000
311221102020211200
410032132111300
5121122400102
611011411200
71520444505
oct416362560
9157366750
1070903152
1137028651
121b8b3b00
13118c6938
1495b94ac
15635851c
hex439e570

70903152 has 60 divisors (see below), whose sum is σ = 201419400. Its totient is φ = 23278464.

The previous prime is 70903139. The next prime is 70903171. The reversal of 70903152 is 25130907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5974 + ... + 13322.

It is an arithmetic number, because the mean of its divisors is an integer number (3356990).

Almost surely, 270903152 is an apocalyptic number.

70903152 is a gapful number since it is divisible by the number (72) 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 70903152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100709700).

70903152 is an abundant number, since it is smaller than the sum of its proper divisors (130516248).

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

70903152 is a wasteful number, since it uses less digits than its factorization.

70903152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7430 (or 7421 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 70903152 is about 8420.4009405728. The cubic root of 70903152 is about 413.8934123140.

The spelling of 70903152 in words is "seventy million, nine hundred three thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 67 72 134 144 201 268 402 536 603 804 1072 1206 1608 2412 3216 4824 7349 9648 14698 22047 29396 44094 58792 66141 88188 117584 132282 176376 264564 352752 492383 529128 984766 1058256 1477149 1969532 2954298 3939064 4431447 5908596 7878128 8862894 11817192 17725788 23634384 35451576 70903152