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168037970 = 2573230189
BaseRepresentation
bin10100000010000…
…00111001010010
3102201012012202112
422001000321102
5321004203340
624401345322
74110204422
oct1201007122
9381165675
10168037970
1186942461
1248338242
1328a76269
1418462482
15eb44065
hexa040e52

168037970 has 16 divisors (see below), whose sum is σ = 306613080. Its totient is φ = 66294144.

The previous prime is 168037951. The next prime is 168037993. The reversal of 168037970 is 79730861.

It can be written as a sum of positive squares in 4 ways, for example, as 156225001 + 11812969 = 12499^2 + 3437^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114365 + ... + 115824.

Almost surely, 2168037970 is an apocalyptic number.

168037970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168037970 is a deficient number, since it is larger than the sum of its proper divisors (138575110).

168037970 is a wasteful number, since it uses less digits than its factorization.

168037970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230269.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 168037970 is about 12962.9460386133. The cubic root of 168037970 is about 551.8264021254.

The spelling of 168037970 in words is "one hundred sixty-eight million, thirty-seven thousand, nine hundred seventy".

Divisors: 1 2 5 10 73 146 365 730 230189 460378 1150945 2301890 16803797 33607594 84018985 168037970