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190885072 = 2473773631
BaseRepresentation
bin10110110000010…
…10110011010000
3111022011222002111
423120022303100
5342331310242
630535155104
74505332150
oct1330126320
9438158074
10190885072
1198827864
1253b15a94
1330715561
141b4cc760
1511b58817
hexb60acd0

190885072 has 80 divisors (see below), whose sum is σ = 440741632. Its totient is φ = 78382080.

The previous prime is 190885069. The next prime is 190885081. The reversal of 190885072 is 270588091.

It is a super-2 number, since 2×1908850722 = 72874221424890368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302197 + ... + 302827.

Almost surely, 2190885072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190885072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220370816).

190885072 is an abundant number, since it is smaller than the sum of its proper divisors (249856560).

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

190885072 is a wasteful number, since it uses less digits than its factorization.

190885072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 190885072 is about 13816.1163863077. The cubic root of 190885072 is about 575.7809899111.

The spelling of 190885072 in words is "one hundred ninety million, eight hundred eighty-five thousand, seventy-two".

Divisors: 1 2 4 7 8 14 16 28 37 56 73 74 112 146 148 259 292 296 511 518 584 592 631 1022 1036 1168 1262 2044 2072 2524 2701 4088 4144 4417 5048 5402 8176 8834 10096 10804 17668 18907 21608 23347 35336 37814 43216 46063 46694 70672 75628 92126 93388 151256 163429 184252 186776 302512 322441 326858 368504 373552 644882 653716 737008 1289764 1307432 1704331 2579528 2614864 3408662 5159056 6817324 11930317 13634648 23860634 27269296 47721268 95442536 190885072