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70140401 = 195135951
BaseRepresentation
bin1000010111001…
…00000111110001
311212222111112122
410023210013301
5120423443101
610543204025
71511116652
oct413440761
9155874478
1070140401
1136657581
121b5a6615
13116ba6c6
14945b529
15625751b
hex42e41f1

70140401 has 4 divisors (see below), whose sum is σ = 70178304. Its totient is φ = 70102500.

The previous prime is 70140379. The next prime is 70140407. The reversal of 70140401 is 10404107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10404107 = 71486301.

It is a cyclic number.

It is not a de Polignac number, because 70140401 - 226 = 3031537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70140401.

It is not an unprimeable number, because it can be changed into a prime (70140407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16025 + ... + 19926.

It is an arithmetic number, because the mean of its divisors is an integer number (17544576).

Almost surely, 270140401 is an apocalyptic number.

It is an amenable number.

70140401 is a deficient number, since it is larger than the sum of its proper divisors (37903).

70140401 is a wasteful number, since it uses less digits than its factorization.

70140401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37902.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 70140401 is about 8374.9866268550. The cubic root of 70140401 is about 412.4038852894.

Adding to 70140401 its reverse (10404107), we get a palindrome (80544508).

The spelling of 70140401 in words is "seventy million, one hundred forty thousand, four hundred one".

Divisors: 1 1951 35951 70140401