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70934942 = 21319143593
BaseRepresentation
bin1000011101001…
…10000110011110
311221110212110002
410032212012132
5121124404232
611012214302
71520636261
oct416460636
9157425402
1070934942
113704a521
121b90a392
1311908250
1495c6cd8
156362b62
hex43a619e

70934942 has 16 divisors (see below), whose sum is σ = 120618960. Its totient is φ = 31015872.

The previous prime is 70934939. The next prime is 70934947. The reversal of 70934942 is 24943907.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 70934896 and 70934905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70934947) 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, 71303 + ... + 72290.

It is an arithmetic number, because the mean of its divisors is an integer number (7538685).

Almost surely, 270934942 is an apocalyptic number.

70934942 is a deficient number, since it is larger than the sum of its proper divisors (49684018).

70934942 is a wasteful number, since it uses less digits than its factorization.

70934942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143627.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 70934942 is about 8422.2884063656. The cubic root of 70934942 is about 413.9552605547.

The spelling of 70934942 in words is "seventy million, nine hundred thirty-four thousand, nine hundred forty-two".

Divisors: 1 2 13 19 26 38 247 494 143593 287186 1866709 2728267 3733418 5456534 35467471 70934942