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70231776 = 2533072383
BaseRepresentation
bin1000010111110…
…10011011100000
311220011010212220
410023322123200
5120434404101
610545151040
71511650236
oct413723340
9156133786
1070231776
113670a19a
121b62b480
1311720184
149482956
156274636
hex42fa6e0

70231776 has 48 divisors (see below), whose sum is σ = 185036544. Its totient is φ = 23324544.

The previous prime is 70231753. The next prime is 70231793. The reversal of 70231776 is 67713207.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×702317762 = 9865004720228352, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 28281 + ... + 30663.

It is an arithmetic number, because the mean of its divisors is an integer number (3854928).

Almost surely, 270231776 is an apocalyptic number.

It is an amenable number.

70231776 is an abundant number, since it is smaller than the sum of its proper divisors (114804768).

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

70231776 is a wasteful number, since it uses less digits than its factorization.

70231776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 70231776 is about 8380.4400839097. The cubic root of 70231776 is about 412.5828931668.

Subtracting from 70231776 its reverse (67713207), we obtain a square (2518569 = 15872).

The spelling of 70231776 in words is "seventy million, two hundred thirty-one thousand, seven hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 307 614 921 1228 1842 2383 2456 3684 4766 4912 7149 7368 9532 9824 14298 14736 19064 28596 29472 38128 57192 76256 114384 228768 731581 1463162 2194743 2926324 4389486 5852648 8778972 11705296 17557944 23410592 35115888 70231776