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70361740 = 22541531619
BaseRepresentation
bin1000011000110…
…10001010001100
311220101202011101
410030122022030
5121003033430
610552032444
71513031161
oct414321214
9156352141
1070361740
11367988a9
121b692724
1311767387
1494b8068
15629cdca
hex431a28c

70361740 has 48 divisors (see below), whose sum is σ = 154314720. Its totient is φ = 26923520.

The previous prime is 70361737. The next prime is 70361777. The reversal of 70361740 is 4716307.

It is a junction number, because it is equal to n+sod(n) for n = 70361699 and 70361708.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42651 + ... + 44269.

It is an arithmetic number, because the mean of its divisors is an integer number (3214890).

Almost surely, 270361740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70361740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77157360).

70361740 is an abundant number, since it is smaller than the sum of its proper divisors (83952980).

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

70361740 is a wasteful number, since it uses less digits than its factorization.

70361740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 70361740 is about 8388.1905080893. The cubic root of 70361740 is about 412.8372314210.

The spelling of 70361740 in words is "seventy million, three hundred sixty-one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 41 53 82 106 164 205 212 265 410 530 820 1060 1619 2173 3238 4346 6476 8095 8692 10865 16190 21730 32380 43460 66379 85807 132758 171614 265516 331895 343228 429035 663790 858070 1327580 1716140 3518087 7036174 14072348 17590435 35180870 70361740