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143914772 = 22233150461
BaseRepresentation
bin10001001001111…
…11011100010100
3101000210121221202
420210333130110
5243320233042
622140332032
73365153411
oct1044773424
9330717852
10143914772
1174266331
1240244018
1323a7b191
1415183108
15c97b632
hex893f714

143914772 has 24 divisors (see below), whose sum is σ = 271283712. Its totient is φ = 66607200.

The previous prime is 143914751. The next prime is 143914777. The reversal of 143914772 is 277419341.

It is a happy number.

143914772 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1439147722 = 41422923199623968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143914777) 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, 22379 + ... + 28082.

It is an arithmetic number, because the mean of its divisors is an integer number (11303488).

Almost surely, 2143914772 is an apocalyptic number.

It is an amenable number.

143914772 is a deficient number, since it is larger than the sum of its proper divisors (127368940).

143914772 is a wasteful number, since it uses less digits than its factorization.

143914772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50519 (or 50517 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 143914772 is about 11996.4483077284. The cubic root of 143914772 is about 524.0448507732.

The spelling of 143914772 in words is "one hundred forty-three million, nine hundred fourteen thousand, seven hundred seventy-two".

Divisors: 1 2 4 23 31 46 62 92 124 713 1426 2852 50461 100922 201844 1160603 1564291 2321206 3128582 4642412 6257164 35978693 71957386 143914772