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70153140 = 22354724877
BaseRepresentation
bin1000010111001…
…11001110110100
311220000011000110
410023213032310
5120424400030
610543343020
71511202051
oct413471664
9156004013
1070153140
1136666102
121b5b1a70
13116c3445
149462028
15625b1b0
hex42e73b4

70153140 has 48 divisors (see below), whose sum is σ = 200616192. Its totient is φ = 18308736.

The previous prime is 70153129. The next prime is 70153141. The reversal of 70153140 is 4135107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70153141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9619 + ... + 15258.

It is an arithmetic number, because the mean of its divisors is an integer number (4179504).

Almost surely, 270153140 is an apocalyptic number.

It is an amenable number.

70153140 is an abundant number, since it is smaller than the sum of its proper divisors (130463052).

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

70153140 is a wasteful number, since it uses less digits than its factorization.

70153140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24936 (or 24934 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 70153140 is about 8375.7471308535. The cubic root of 70153140 is about 412.4288509059.

Adding to 70153140 its reverse (4135107), we get a palindrome (74288247).

The spelling of 70153140 in words is "seventy million, one hundred fifty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 60 94 141 188 235 282 470 564 705 940 1410 2820 24877 49754 74631 99508 124385 149262 248770 298524 373155 497540 746310 1169219 1492620 2338438 3507657 4676876 5846095 7015314 11692190 14030628 17538285 23384380 35076570 70153140