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1002230442 = 23325317333
BaseRepresentation
bin111011101111001…
…101001010101010
32120211212120201000
4323233031022222
54023032333232
6243241135430
733556550433
oct7357151252
92524776630
101002230442
11474807624
1223b78a576
1312c83b485
149716c48a
155cec227c
hex3bbcd2aa

1002230442 has 32 divisors (see below), whose sum is σ = 2228362560. Its totient is φ = 333899280.

The previous prime is 1002230441. The next prime is 1002230473. The reversal of 1002230442 is 2440322001.

1002230442 is a `hidden beast` number, since 1 + 0 + 0 + 223 + 0 + 442 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1002230441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133008 + ... + 140340.

It is an arithmetic number, because the mean of its divisors is an integer number (69636330).

Almost surely, 21002230442 is an apocalyptic number.

1002230442 is an abundant number, since it is smaller than the sum of its proper divisors (1226132118).

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

1002230442 is a wasteful number, since it uses less digits than its factorization.

1002230442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9875 (or 9869 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1002230442 is about 31658.0233432222. The cubic root of 1002230442 is about 1000.7429285871.

Adding to 1002230442 its reverse (2440322001), we get a palindrome (3442552443).

The spelling of 1002230442 in words is "one billion, two million, two hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 2531 5062 7333 7593 14666 15186 21999 22779 43998 45558 65997 68337 131994 136674 197991 395982 18559823 37119646 55679469 111358938 167038407 334076814 501115221 1002230442