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8998040 = 235224951
BaseRepresentation
bin100010010100…
…110010011000
3121221010222202
4202110302120
54300414130
6520505332
7136324232
oct42246230
917833882
108998040
1150963a7
12301b248
131b307ac
1412a3252
15bcb145
hex894c98

8998040 has 16 divisors (see below), whose sum is σ = 20245680. Its totient is φ = 3599200.

The previous prime is 8997979. The next prime is 8998061. The reversal of 8998040 is 408998.

It is a junction number, because it is equal to n+sod(n) for n = 8997985 and 8998003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112436 + ... + 112515.

It is an arithmetic number, because the mean of its divisors is an integer number (1265355).

Almost surely, 28998040 is an apocalyptic number.

It is an amenable number.

8998040 is an abundant number, since it is smaller than the sum of its proper divisors (11247640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8998040 is a wasteful number, since it uses less digits than its factorization.

8998040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224962 (or 224958 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 8998040 is about 2999.6733155462. The cubic root of 8998040 is about 207.9932813412.

The spelling of 8998040 in words is "eight million, nine hundred ninety-eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 224951 449902 899804 1124755 1799608 2249510 4499020 8998040