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201245472 = 253477641
BaseRepresentation
bin10111111111011…
…00001100100000
3112000200022220000
423333230030200
5403004323342
631545220000
74662362331
oct1377541440
9460608800
10201245472
11a366377a
1257491600
133290217c
141ca28288
1512a0344c
hexbfec320

201245472 has 60 divisors (see below), whose sum is σ = 591864966. Its totient is φ = 67080960.

The previous prime is 201245467. The next prime is 201245477. The reversal of 201245472 is 274542102.

201245472 is a `hidden beast` number, since 201 + 2 + 454 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (201245467) and next prime (201245477).

It can be written as a sum of positive squares in only one way, i.e., 198133776 + 3111696 = 14076^2 + 1764^2 .

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

It is not an unprimeable number, because it can be changed into a prime (201245477) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36229 + ... + 41412.

Almost surely, 2201245472 is an apocalyptic number.

It is an amenable number.

201245472 is an abundant number, since it is smaller than the sum of its proper divisors (390619494).

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

201245472 is an equidigital number, since it uses as much as digits as its factorization.

201245472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77663 (or 77646 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 201245472 is about 14186.1013671833. The cubic root of 201245472 is about 586.0149638768.

Adding to 201245472 its reverse (274542102), we get a palindrome (475787574).

The spelling of 201245472 in words is "two hundred one million, two hundred forty-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 2592 77641 155282 232923 310564 465846 621128 698769 931692 1242256 1397538 1863384 2096307 2484512 2795076 3726768 4192614 5590152 6288921 7453536 8385228 11180304 12577842 16770456 22360608 25155684 33540912 50311368 67081824 100622736 201245472