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145970214 = 23131871413
BaseRepresentation
bin10001011001101…
…01010000100110
3101011200001111020
420230311100212
5244332021324
622252352010
73421504065
oct1054652046
9334601436
10145970214
117543a645
1240a75606
132431a910
141555a1dc
15cc35679
hex8b35426

145970214 has 16 divisors (see below), whose sum is σ = 314397552. Its totient is φ = 44913888.

The previous prime is 145970183. The next prime is 145970219. The reversal of 145970214 is 412079541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145970219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935629 + ... + 935784.

It is an arithmetic number, because the mean of its divisors is an integer number (19649847).

Almost surely, 2145970214 is an apocalyptic number.

145970214 is an abundant number, since it is smaller than the sum of its proper divisors (168427338).

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

145970214 is a wasteful number, since it uses less digits than its factorization.

145970214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871431.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 145970214 is about 12081.8133572738. The cubic root of 145970214 is about 526.5279316428.

The spelling of 145970214 in words is "one hundred forty-five million, nine hundred seventy thousand, two hundred fourteen".

Divisors: 1 2 3 6 13 26 39 78 1871413 3742826 5614239 11228478 24328369 48656738 72985107 145970214