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148742002 = 274371001
BaseRepresentation
bin10001101110110…
…01111101110010
3101100212212200001
420313121331302
5301034221002
622432020214
73454200103
oct1067317562
9340785601
10148742002
1176a63082
124199166a
1324a7b426
1415a7c3aa
15d0d1a87
hex8dd9f72

148742002 has 4 divisors (see below), whose sum is σ = 223113006. Its totient is φ = 74371000.

The previous prime is 148741987. The next prime is 148742003. The reversal of 148742002 is 200247841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200247841 = 721927739.

It can be written as a sum of positive squares in only one way, i.e., 128572921 + 20169081 = 11339^2 + 4491^2 .

It is not an unprimeable number, because it can be changed into a prime (148742003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37185499 + ... + 37185502.

Almost surely, 2148742002 is an apocalyptic number.

148742002 is a deficient number, since it is larger than the sum of its proper divisors (74371004).

148742002 is an equidigital number, since it uses as much as digits as its factorization.

148742002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74371003.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 148742002 is about 12195.9830272102. The cubic root of 148742002 is about 529.8397545688.

Adding to 148742002 its reverse (200247841), we get a palindrome (348989843).

The spelling of 148742002 in words is "one hundred forty-eight million, seven hundred forty-two thousand, two".

Divisors: 1 2 74371001 148742002