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35421140 = 2251771057
BaseRepresentation
bin1000011100011…
…1101111010100
32110122120200002
42013013233110
533031434030
63303110432
7610034426
oct207075724
973576602
1035421140
1118aa3477
12ba42418
137452671
1449c0816
15319a245
hex21c7bd4

35421140 has 12 divisors (see below), whose sum is σ = 74384436. Its totient is φ = 14168448.

The previous prime is 35421107. The next prime is 35421143. The reversal of 35421140 is 4112453.

It can be written as a sum of positive squares in 2 ways, for example, as 11587216 + 23833924 = 3404^2 + 4882^2 .

It is a super-3 number, since 3×354211403 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1771057 = 35421140 / (3 + 5 + 4 + 2 + 1 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35421143) 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, 885509 + ... + 885548.

It is an arithmetic number, because the mean of its divisors is an integer number (6198703).

Almost surely, 235421140 is an apocalyptic number.

It is an amenable number.

35421140 is an abundant number, since it is smaller than the sum of its proper divisors (38963296).

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

35421140 is a wasteful number, since it uses less digits than its factorization.

35421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771066 (or 1771064 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 35421140 is about 5951.5661804268. The cubic root of 35421140 is about 328.4133817267.

Adding to 35421140 its reverse (4112453), we get a palindrome (39533593).

The spelling of 35421140 in words is "thirty-five million, four hundred twenty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1771057 3542114 7084228 8855285 17710570 35421140