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148400142 = 23112718297
BaseRepresentation
bin10001101100001…
…10100000001110
3101100020111201120
420312012200032
5300442301032
622420421410
73451244322
oct1066064016
9340214646
10148400142
117684a250
1241847866
132498b947
14159cd982
15d06562c
hex8d8680e

148400142 has 32 divisors (see below), whose sum is σ = 325016064. Its totient is φ = 44798400.

The previous prime is 148400137. The next prime is 148400143. The reversal of 148400142 is 241004841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148400143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13738 + ... + 22034.

It is an arithmetic number, because the mean of its divisors is an integer number (10156752).

Almost surely, 2148400142 is an apocalyptic number.

148400142 is an abundant number, since it is smaller than the sum of its proper divisors (176615922).

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

148400142 is a wasteful number, since it uses less digits than its factorization.

148400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8584.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 148400142 is about 12181.9596945647. The cubic root of 148400142 is about 529.4335255267.

Adding to 148400142 its reverse (241004841), we get a palindrome (389404983).

The spelling of 148400142 in words is "one hundred forty-eight million, four hundred thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 271 542 813 1626 2981 5962 8297 8943 16594 17886 24891 49782 91267 182534 273801 547602 2248487 4496974 6745461 13490922 24733357 49466714 74200071 148400142