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70141240 = 23513134887
BaseRepresentation
bin1000010111001…
…00010100111000
311212222112200201
410023210110320
5120424004430
610543211544
71511122261
oct413442470
9155875621
1070141240
1136658174
121b5a6bb4
13116babc0
14945b968
1562578ca
hex42e4538

70141240 has 32 divisors (see below), whose sum is σ = 169958880. Its totient is φ = 25898112.

The previous prime is 70141231. The next prime is 70141241. The reversal of 70141240 is 4214107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70141241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66924 + ... + 67963.

It is an arithmetic number, because the mean of its divisors is an integer number (5311215).

Almost surely, 270141240 is an apocalyptic number.

It is an amenable number.

70141240 is an abundant number, since it is smaller than the sum of its proper divisors (99817640).

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

70141240 is a wasteful number, since it uses less digits than its factorization.

70141240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134911 (or 134907 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 70141240 is about 8375.0367163374. The cubic root of 70141240 is about 412.4055296364.

Adding to 70141240 its reverse (4214107), we get a palindrome (74355347).

The spelling of 70141240 in words is "seventy million, one hundred forty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 134887 269774 539548 674435 1079096 1348870 1753531 2697740 3507062 5395480 7014124 8767655 14028248 17535310 35070620 70141240