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30342977 = 717253283
BaseRepresentation
bin111001110111…
…1111101000001
32010002120201222
41303233331001
530231433402
63002204425
7515624330
oct163577501
963076658
1030342977
1116145145
12a1b3715
136395132
14405bd17
1529e57a2
hex1ceff41

30342977 has 24 divisors (see below), whose sum is σ = 37665216. Its totient is φ = 23931648.

The previous prime is 30342937. The next prime is 30342979. The reversal of 30342977 is 77924303.

It is not a de Polignac number, because 30342977 - 210 = 30341953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30342979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107078 + ... + 107360.

It is an arithmetic number, because the mean of its divisors is an integer number (1569384).

Almost surely, 230342977 is an apocalyptic number.

It is an amenable number.

30342977 is a deficient number, since it is larger than the sum of its proper divisors (7322239).

30342977 is a wasteful number, since it uses less digits than its factorization.

30342977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 30342977 is about 5508.4459695998. The cubic root of 30342977 is about 311.9028879497.

It can be divided in two parts, 303 and 42977, that multiplied together give a palindrome (13022031).

The spelling of 30342977 in words is "thirty million, three hundred forty-two thousand, nine hundred seventy-seven".

Divisors: 1 7 17 53 119 283 289 371 901 1981 2023 4811 6307 14999 15317 33677 81787 104993 107219 254983 572509 1784881 4334711 30342977