Search a number
-
+
970881941 = 1079073663
BaseRepresentation
bin111001110111100…
…111101110010101
32111122212220122102
4321313213232111
53442021210231
6240201211445
733026234411
oct7167475625
92448786572
10970881941
11459045a77
12231190b85
131261b3773
1492d2bd41
155a37dacb
hex39de7b95

970881941 has 4 divisors (see below), whose sum is σ = 979955712. Its totient is φ = 961808172.

The previous prime is 970881913. The next prime is 970881943. The reversal of 970881941 is 149188079.

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: 149188079 = 1277116827.

It is a cyclic number.

It is not a de Polignac number, because 970881941 - 214 = 970865557 is a prime.

It is a super-2 number, since 2×9708819412 = 1885223486719854962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970881943) 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, 4536725 + ... + 4536938.

It is an arithmetic number, because the mean of its divisors is an integer number (244988928).

Almost surely, 2970881941 is an apocalyptic number.

It is an amenable number.

970881941 is a deficient number, since it is larger than the sum of its proper divisors (9073771).

970881941 is a wasteful number, since it uses less digits than its factorization.

970881941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9073770.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 970881941 is about 31158.9784973770. The cubic root of 970881941 is about 990.1982193308.

The spelling of 970881941 in words is "nine hundred seventy million, eight hundred eighty-one thousand, nine hundred forty-one".

Divisors: 1 107 9073663 970881941