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70230480 = 2435292627
BaseRepresentation
bin1000010111110…
…10000111010000
311220011002002220
410023322013100
5120434333410
610545141040
71511643405
oct413720720
9156132086
1070230480
1136709221
121b62a780
131171c6c8
1494822ac
156274070
hex42fa1d0

70230480 has 40 divisors (see below), whose sum is σ = 217715232. Its totient is φ = 18728064.

The previous prime is 70230443. The next prime is 70230487. The reversal of 70230480 is 8403207.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 70230480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70230487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146074 + ... + 146553.

Almost surely, 270230480 is an apocalyptic number.

It is an amenable number.

70230480 is an abundant number, since it is smaller than the sum of its proper divisors (147484752).

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

70230480 is a wasteful number, since it uses less digits than its factorization.

70230480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292643 (or 292637 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 70230480 is about 8380.3627606447. The cubic root of 70230480 is about 412.5803553283.

Adding to 70230480 its reverse (8403207), we get a palindrome (78633687).

The spelling of 70230480 in words is "seventy million, two hundred thirty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 292627 585254 877881 1170508 1463135 1755762 2341016 2926270 3511524 4389405 4682032 5852540 7023048 8778810 11705080 14046096 17557620 23410160 35115240 70230480