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70672080 = 2435294467
BaseRepresentation
bin1000011011001…
…01111011010000
311220222111212110
410031211323100
5121043001310
611002425320
71515463023
oct415457320
9156874773
1070672080
113698aa86
121b802240
13118456cb
1495591ba
15630ed20
hex4365ed0

70672080 has 40 divisors (see below), whose sum is σ = 219084192. Its totient is φ = 18845824.

The previous prime is 70672079. The next prime is 70672097. The reversal of 70672080 is 8027607.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 146994 + ... + 147473.

Almost surely, 270672080 is an apocalyptic number.

It is an amenable number.

70672080 is an abundant number, since it is smaller than the sum of its proper divisors (148412112).

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

70672080 is a wasteful number, since it uses less digits than its factorization.

70672080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294483 (or 294477 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 70672080 is about 8406.6687813902. The cubic root of 70672080 is about 413.4432994498.

Adding to 70672080 its reverse (8027607), we get a palindrome (78699687).

The spelling of 70672080 in words is "seventy million, six hundred seventy-two thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 294467 588934 883401 1177868 1472335 1766802 2355736 2944670 3533604 4417005 4711472 5889340 7067208 8834010 11778680 14134416 17668020 23557360 35336040 70672080