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70514740 = 2258294253
BaseRepresentation
bin1000011001111…
…11100000110100
311220200112001001
410030333200310
5121022432430
610555213044
71514236222
oct414774064
9156615031
1070514740
113689284a
121b747184
13117bbbca
149517b12
1562cd3ca
hex433f834

70514740 has 24 divisors (see below), whose sum is σ = 148294440. Its totient is φ = 28165248.

The previous prime is 70514713. The next prime is 70514749. The reversal of 70514740 is 4741507.

It can be written as a sum of positive squares in 4 ways, for example, as 1192464 + 69322276 = 1092^2 + 8326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70514699 and 70514708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70514749) by changing a digit.

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, 14454 + ... + 18706.

It is an arithmetic number, because the mean of its divisors is an integer number (6178935).

Almost surely, 270514740 is an apocalyptic number.

It is an amenable number.

70514740 is an abundant number, since it is smaller than the sum of its proper divisors (77779700).

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

70514740 is a wasteful number, since it uses less digits than its factorization.

70514740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091 (or 5089 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 70514740 is about 8397.3055202249. The cubic root of 70514740 is about 413.1362498396.

The spelling of 70514740 in words is "seventy million, five hundred fourteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 829 1658 3316 4145 4253 8290 8506 16580 17012 21265 42530 85060 3525737 7051474 14102948 17628685 35257370 70514740