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31441099 = 311014229
BaseRepresentation
bin111011111110…
…0000011001011
32012011101002011
41313330003023
531022103344
63041520351
7531150004
oct167740313
965141064
1031441099
1116825188
12a6430b7
13668ac01
1442661ab
152b60d34
hex1dfc0cb

31441099 has 4 divisors (see below), whose sum is σ = 32455360. Its totient is φ = 30426840.

The previous prime is 31441097. The next prime is 31441103. The reversal of 31441099 is 99014413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99014413 = 791253347.

It is a cyclic number.

It is not a de Polignac number, because 31441099 - 21 = 31441097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1014229 = 31441099 / (3 + 1 + 4 + 4 + 1 + 0 + 9 + 9).

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 31441099.

It is not an unprimeable number, because it can be changed into a prime (31441093) 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, 507084 + ... + 507145.

It is an arithmetic number, because the mean of its divisors is an integer number (8113840).

Almost surely, 231441099 is an apocalyptic number.

31441099 is a deficient number, since it is larger than the sum of its proper divisors (1014261).

31441099 is a wasteful number, since it uses less digits than its factorization.

31441099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014260.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 31441099 is about 5607.2363067736. The cubic root of 31441099 is about 315.6210105564.

The spelling of 31441099 in words is "thirty-one million, four hundred forty-one thousand, ninety-nine".

Divisors: 1 31 1014229 31441099