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9472140 = 223551949
BaseRepresentation
bin100100001000…
…100010001100
3122211020100000
4210020202030
54411102030
6535004300
7143340366
oct44104214
918736300
109472140
11538a617
123209690
131c68522
141387d36
15c71860
hex90888c

9472140 has 72 divisors (see below), whose sum is σ = 29811600. Its totient is φ = 2524608.

The previous prime is 9472139. The next prime is 9472153. The reversal of 9472140 is 412749.

It is a happy number.

It is a super-4 number, since 4×94721404 (a number of 29 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3886 + ... + 5834.

It is an arithmetic number, because the mean of its divisors is an integer number (414050).

Almost surely, 29472140 is an apocalyptic number.

9472140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9472140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14905800).

9472140 is an abundant number, since it is smaller than the sum of its proper divisors (20339460).

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

9472140 is a wasteful number, since it uses less digits than its factorization.

9472140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1959 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 9472140 is about 3077.6841943253. The cubic root of 9472140 is about 211.5839413296.

Adding to 9472140 its reverse (412749), we get a palindrome (9884889).

The spelling of 9472140 in words is "nine million, four hundred seventy-two thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1215 1620 1949 2430 3898 4860 5847 7796 9745 11694 17541 19490 23388 29235 35082 38980 52623 58470 70164 87705 105246 116940 157869 175410 210492 263115 315738 350820 473607 526230 631476 789345 947214 1052460 1578690 1894428 2368035 3157380 4736070 9472140