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74963070 = 2365713113
BaseRepresentation
bin1000111011111…
…01100001111110
312020001112000000
410131331201332
5123142304240
611234415130
71600114140
oct435754176
9166045000
1074963070
1139350956
12211314a6
13126b8860
149d54c90
1568ab430
hex477d87e

74963070 has 224 divisors, whose sum is σ = 251197632. Its totient is φ = 15676416.

The previous prime is 74963069. The next prime is 74963071. The reversal of 74963070 is 7036947.

It is an interprime number because it is at equal distance from previous prime (74963069) and next prime (74963071).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74963071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 663334 + ... + 663446.

It is an arithmetic number, because the mean of its divisors is an integer number (1121418).

Almost surely, 274963070 is an apocalyptic number.

74963070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 74963070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125598816).

74963070 is an abundant number, since it is smaller than the sum of its proper divisors (176234562).

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

74963070 is a wasteful number, since it uses less digits than its factorization.

74963070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 74963070 is about 8658.1216207674. The cubic root of 74963070 is about 421.6471035794.

It can be divided in two parts, 749630 and 70, that added together give a triangular number (749700 = T1224).

The spelling of 74963070 in words is "seventy-four million, nine hundred sixty-three thousand, seventy".