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1421292 = 223831427
BaseRepresentation
bin101011010111111101100
32200012122110
411122333230
5330440132
650244020
715036465
oct5327754
92605573
101421292
11890924
12586610
133a9c02
1428dd6c
151d11cc
hex15afec

1421292 has 24 divisors (see below), whose sum is σ = 3358656. Its totient is φ = 467728.

The previous prime is 1421291. The next prime is 1421293. The reversal of 1421292 is 2921241.

It is an interprime number because it is at equal distance from previous prime (1421291) and next prime (1421293).

It is a super-3 number, since 3×14212923 = 8613332038863987264, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1421291) 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, 283 + ... + 1709.

It is an arithmetic number, because the mean of its divisors is an integer number (139944).

21421292 is an apocalyptic number.

1421292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421292 is an abundant number, since it is smaller than the sum of its proper divisors (1937364).

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

1421292 is a wasteful number, since it uses less digits than its factorization.

1421292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1515 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 1421292 is about 1192.1795166836. The cubic root of 1421292 is about 112.4331652405.

The spelling of 1421292 in words is "one million, four hundred twenty-one thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 1427 2854 4281 5708 8562 17124 118441 236882 355323 473764 710646 1421292