Search a number
-
+
61412085 = 32571931331
BaseRepresentation
bin1110101001000…
…1001011110101
311021120001112200
43222101023311
5111210141320
610032135113
71343664660
oct352211365
9137501480
1061412085
1131735899
1218697499
13c952917
1482286d7
1555d1290
hex3a912f5

61412085 has 96 divisors (see below), whose sum is σ = 132587520. Its totient is φ = 25660800.

The previous prime is 61412083. The next prime is 61412101. The reversal of 61412085 is 58021416.

It is not a de Polignac number, because 61412085 - 21 = 61412083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61412083) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 185370 + ... + 185700.

It is an arithmetic number, because the mean of its divisors is an integer number (1381120).

Almost surely, 261412085 is an apocalyptic number.

It is an amenable number.

61412085 is an abundant number, since it is smaller than the sum of its proper divisors (71175435).

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

61412085 is a wasteful number, since it uses less digits than its factorization.

61412085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 61412085 is about 7836.5863103778. The cubic root of 61412085 is about 394.5341621541.

The spelling of 61412085 in words is "sixty-one million, four hundred twelve thousand, eighty-five".

Divisors: 1 3 5 7 9 15 19 21 31 35 45 57 63 93 95 105 133 155 171 217 279 285 315 331 399 465 589 651 665 855 993 1085 1197 1395 1655 1767 1953 1995 2317 2945 2979 3255 4123 4965 5301 5985 6289 6951 8835 9765 10261 11585 12369 14895 18867 20615 20853 26505 30783 31445 34755 37107 44023 51305 56601 61845 71827 92349 94335 104265 132069 153915 185535 194959 215481 220115 283005 359135 396207 461745 584877 646443 660345 974795 1077405 1364713 1754631 1981035 2924385 3232215 4094139 6823565 8773155 12282417 20470695 61412085