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148161970 = 25111779231
BaseRepresentation
bin10001101010011…
…00010110110010
3101022210102000101
420311030112302
5300412140340
622411343014
73446233045
oct1065142662
9338712011
10148161970
11766a7310
1241751a6a
1324907408
141596ac5c
15d019c9a
hex8d4c5b2

148161970 has 32 divisors (see below), whose sum is σ = 308054016. Its totient is φ = 50707200.

The previous prime is 148161911. The next prime is 148161973. The reversal of 148161970 is 79161841.

It is not an unprimeable number, because it can be changed into a prime (148161973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37746 + ... + 41485.

It is an arithmetic number, because the mean of its divisors is an integer number (9626688).

Almost surely, 2148161970 is an apocalyptic number.

148161970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148161970 is an abundant number, since it is smaller than the sum of its proper divisors (159892046).

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

148161970 is a wasteful number, since it uses less digits than its factorization.

148161970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79266.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 148161970 is about 12172.1801662644. The cubic root of 148161970 is about 529.1501390943.

The spelling of 148161970 in words is "one hundred forty-eight million, one hundred sixty-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1870 79231 158462 396155 792310 871541 1346927 1743082 2693854 4357705 6734635 8715410 13469270 14816197 29632394 74080985 148161970