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30191198661120 = 293574711948771
BaseRepresentation
bin1101101110101011011111…
…01010111110101000000000
310221220020202112201002210110
412313111233222332220000
512424123033324123440
6144113351210031320
76234146022242130
oct667255752765000
9127806675632713
1030191198661120
11969001961a072
12347730b418540
1313b00301b6ba3
147653945aaac0
15375520714080
hex1b756fabea00

30191198661120 has 320 divisors, whose sum is σ = 112652640055296. Its totient is φ = 6754018344960.

The previous prime is 30191198661103. The next prime is 30191198661139. The reversal of 30191198661120 is 2116689119103.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 30191198661120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3447666 + ... + 8501105.

Almost surely, 230191198661120 is an apocalyptic number.

30191198661120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30191198661120 is an abundant number, since it is smaller than the sum of its proper divisors (82461441394176).

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

30191198661120 is a wasteful number, since it uses less digits than its factorization.

30191198661120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948851 (or 11948835 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 48.

The spelling of 30191198661120 in words is "thirty trillion, one hundred ninety-one billion, one hundred ninety-eight million, six hundred sixty-one thousand, one hundred twenty".