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980901 = 32731493
BaseRepresentation
bin11101111011110100101
31211211112200
43233132211
5222342101
633005113
711223525
oct3573645
91754480
10980901
1160aa69
123b3799
1328461c
141b7685
15145986
hexef7a5

980901 has 12 divisors (see below), whose sum is σ = 1437228. Its totient is φ = 644544.

The previous prime is 980899. The next prime is 980909. The reversal of 980901 is 109089.

It can be written as a sum of positive squares in 2 ways, for example, as 720801 + 260100 = 849^2 + 510^2 .

It is not a de Polignac number, because 980901 - 21 = 980899 is a prime.

980901 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 980901.

It is not an unprimeable number, because it can be changed into a prime (980909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (119769).

2980901 is an apocalyptic number.

It is an amenable number.

980901 is a deficient number, since it is larger than the sum of its proper divisors (456327).

980901 is a wasteful number, since it uses less digits than its factorization.

980901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 980901 is about 990.4044628332. The cubic root of 980901 is about 99.3592700865.

It can be divided in two parts, 980 and 901, that added together give a palindrome (1881).

The spelling of 980901 in words is "nine hundred eighty thousand, nine hundred one".

Divisors: 1 3 9 73 219 657 1493 4479 13437 108989 326967 980901