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990415941 = 3893709423
BaseRepresentation
bin111011000010001…
…000110001000101
32120000122100020220
4323002020301011
54012021302231
6242140014553
733354253014
oct7302106105
92500570226
10990415941
11469078179
12237831459
1312a262a48
1495774a7b
155be3b896
hex3b088c45

990415941 has 8 divisors (see below), whose sum is σ = 1335392640. Its totient is φ = 652858272.

The previous prime is 990415901. The next prime is 990415957. The reversal of 990415941 is 149514099.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 990415941 - 29 = 990415429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 990415893 and 990415902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990415901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854445 + ... + 1854978.

It is an arithmetic number, because the mean of its divisors is an integer number (166924080).

Almost surely, 2990415941 is an apocalyptic number.

It is an amenable number.

990415941 is a deficient number, since it is larger than the sum of its proper divisors (344976699).

990415941 is a wasteful number, since it uses less digits than its factorization.

990415941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709515.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 990415941 is about 31470.8744873732. The cubic root of 990415941 is about 996.7950529545.

The spelling of 990415941 in words is "nine hundred ninety million, four hundred fifteen thousand, nine hundred forty-one".

Divisors: 1 3 89 267 3709423 11128269 330138647 990415941